Representative questions from authentic past papers with detailed step-by-step solutions and verified formulas.
๐ท๏ธ HEC HAT-I โข Oct 2024 (Morning Batch)
Quantitative Reasoning
Question 1 of 200
A train 180 meters long is traveling at a constant speed of 54 km/h. How many seconds will it take to completely pass a railway platform of length 270 meters?
(A)25 seconds
(B)30 seconds
(C)35 seconds
(D)40 seconds
โ Correct Answer: Option B
(30 seconds)
๐ก Step-by-Step Explanation:
1. Total distance = Length of train + Length of platform = 180m + 270m = 450 meters.
2. Convert speed: 54 km/h = 54 ร (5/18) = 15 m/s.
3. Time = Total Distance / Speed = 450 / 15 = 30 seconds.
๐ท๏ธ HEC HAT-General โข Aug 2024 (Session-1)
Quantitative Reasoning
Question 2 of 200
Pipe A can fill a water tank in 10 hours, while Pipe B can fill the same tank in 15 hours. If both pipes are opened simultaneously, how long will it take to fill the tank completely?
๐ท๏ธ HEC HAT-III โข Nov 2023
Quantitative Reasoning
Question 8 of 200
A card is drawn at random from a standard, well-shuffled pack of 52 playing cards. What is the probability that the card drawn is either a King or a Heart?
๐ท๏ธ HEC USAT-CS โข Aug 2023
Quantitative Reasoning
Question 10 of 200
Find the sum of the infinite geometric series: 18, 6, 2, 2/3, ...
(A)24
(B)27
(C)36
(D)54
โ Correct Answer: Option B
(27)
๐ก Step-by-Step Explanation:
First term a = 18, common ratio r = 6/18 = 1/3. Sum Sโ = a / (1 - r) = 18 / (1 - 1/3) = 18 / (2/3) = 18 ร (3/2) = 27.
๐ท๏ธ HEC HAT-General โข Oct 2024
Analytical Reasoning
Question 11 of 200
Five executives (P, Q, R, S, T) sit in a circular conference table facing the center. P is between S and T. Q is immediately to the left of T. Who is sitting immediately to the right of P?
(A)S
(B)T
(C)Q
(D)R
โ Correct Answer: Option B
(T)
๐ก Step-by-Step Explanation:
Facing center in circular clockwise order: T -> P -> S -> R -> Q. Since P is between S and T with Q to the left of T, looking from P's perspective facing center, T is to P's immediate right and S is to P's immediate left.
๐ท๏ธ HEC HAT-I โข Aug 2024
Analytical Reasoning
Question 12 of 200
If all Zips are Zaps, and some Zaps are Zops, which of the following conclusions MUST be true?
(A)All Zips are Zops
(B)Some Zips are Zops
(C)Some Zaps are Zips
(D)No Zips are Zops
โ Correct Answer: Option C
(Some Zaps are Zips)
๐ก Step-by-Step Explanation:
If all A are B, then by immediate conversion, Some B are A ('Some Zaps are Zips') is necessarily true.
๐ท๏ธ NTS NAT-IE โข June 2024
Analytical Reasoning
Question 13 of 200
In a code language, if 'MADRAS' is coded as 'NBESBT', how will 'BOMBAY' be coded in that same system?
(A)CPNCBX
(B)CPNCBZ
(C)CPOCBZ
(D)CQOCBZ
โ Correct Answer: Option B
(CPNCBZ)
๐ก Step-by-Step Explanation:
Each letter is shifted forward by +1 position: B->C, O->P, M->N, B->C, A->B, Y->Z โน CPNCBZ.
๐ท๏ธ HEC HAT-General โข Oct 2024
Verbal Reasoning
Question 14 of 200
PROSAIC : POETRY ::
(A)Lethargic : Activity
(B)Pedestrian : Novelty
(C)Mundane : Imagination
(D)Cacophonous : Music
โ Correct Answer: Option D
(Cacophonous : Music)
๐ก Step-by-Step Explanation:
Prosaic describes something that lacks poetic beauty; cacophonous describes sound that lacks musical harmony.
๐ท๏ธ NTS GAT-B โข Sept 2024
Verbal Reasoning
Question 15 of 200
Select the word most OPPOSITE in meaning to INIMICAL:
(A)Hostile
(B)Friendly & Favorable
(C)Ambiguous
(D)Dangerous
โ Correct Answer: Option B
(Friendly & Favorable)
๐ก Step-by-Step Explanation:
Inimical means harmful or hostile. Its direct antonym is Friendly / Favorable / Amiable.
๐ท๏ธ HEC USAT-CS โข Oct 2025 (Paper-I)
Quantitative Aptitude Test
Question 16 of 200
Ali bought a electric fan priced at Rs. 2,000. He was given two successive discounts of 10 and 5 percent. If he had to pay 10 percent sales tax, the net amount he paid was.
(A)Rs. 2,633.40
(B)Rs. 2,592
(C)Rs. 2,660
(D)Rs. 1,881
โ Correct Answer: Option D
(Rs. 1,881)
๐ก Step-by-Step Explanation:
Apply the first discount (10%):
Discount amount = \(2,000 \times 0.10 = \text{Rs. 200}\)
Price after 1st discount = \(2,000 - 200 = \text{Rs. 1,800}\)
Apply the second discount (5%) to the reduced price:
Discount amount = \(1,800 \times 0.05 = \text{Rs. 90}\)
Price after 2nd discount = \(1,800 - 90 = \text{Rs. 1,710}\)
Add the 10% sales tax to the final discounted price:
Sales tax amount = \(1,710 \times 0.10 = \text{Rs. 171}\)
Net amount paid = \(1,710 + 171 = \mathbf{\text{Rs. 1,881}}\)
๐ท๏ธ HEC USAT-CS โข Dec 2025 (Morning Session)
Quantitative Aptitude Test
Question 17 of 200
Geometric mean of $a^{2n}รb^{2n}$?
(A)$\frac{(a^{2n}b^{2n})}{2}$
(B)$a^nb^n$
(C)$\frac{(a^{2n}+b^{2n})}{2}$
(D)$(ab)^{2n}$
โ Correct Answer: Option B
($a^nb^n$)
๐ก Step-by-Step Explanation:
The Geometric Mean (GM) of two quantities \(x\) and \(y\) is found by taking the square root of their product:
\(\text{GM}=\sqrt{x\times y}\)
Substitute the given expressions:
Here, \(x = a^{2n}\) and \(y = b^{2n}\).
\(\text{GM}=\sqrt{a^{2n}\times b^{2n}}\)
Combine the bases under the exponent:
\(\text{GM}=\sqrt{(ab)^{2n}}\)
Simplify the square root:
Taking the square root of an exponential expression is the same as dividing its exponent by 2:
\(\text{GM}=\left((ab)^{2n}\right)^{\frac{1}{2}}=(ab)^{n}=\mathbf{a}^{\mathbf{n}}\mathbf{b}^{\mathbf{n}}\)
๐ท๏ธ HEC USAT-CS โข Oct 2025 (Paper-I)
Quantitative Aptitude Test
Question 18 of 200
A student loses a mark for every wrong answer and scores 2 marks for every correct answer. If he answers all the 60 questions in an exam and scores 39 marks. How many of them were correct?
(A)31
(B)37
(C)33
(D)27
โ Correct Answer: Option C
(33)
๐ก Step-by-Step Explanation:
Set up the system of equations:
Total questions answered:
\(C+W=60\implies W=60-C\)
Total marks scored:
\(2C-1W=39\)
Substitute \(W\) into the score equation:
\(2C-(60-C)=39\)
\(2C-60+C=39\)
\(3C-60=39\)
Solve for \(C\):
\(3C=39+60\)
\(3C=99\)
\(C=\frac{99}{3}=\mathbf{33}\)
๐ท๏ธ HEC USAT-CS โข March 2025 (Batch-2)
Quantitative Aptitude Test
Question 19 of 200
Expansion of $(X+3)^{19}$ will contain __ terms?
(A)19
(B)21
(C)20
(D)18
โ Correct Answer: Option C
(20)
๐ก Step-by-Step Explanation:
In binomial expansion (a+b)n, the number of terms is always n+1.
According to the Binomial Theorem, when you expand a binomial expression raised to a positive integer power \(n\) (in the form \((a+b)^n\)), the total number of terms in the expanded form is always equal to \(n + 1\).
Calculation
Given exponent (\(n\)) = \(19\)
Total terms = \(19 + 1 = \mathbf{20}\)
๐ท๏ธ HEC USAT-CS โข Aug 2025 (Batch-1)
Quantitative Aptitude Test
Question 20 of 200
$2^3โ 2^{โ6}+2^{โ3}โ 2^6$ is closest to?
(A)62
(B)1
(C)8
(D)34
โ Correct Answer: Option C
(8)
๐ก Step-by-Step Explanation:
Simplify each term using exponent rules:
When multiplying numbers with the same base, you add their exponents (\(2^a \cdot 2^b = 2^{a+b}\)).
First term: \(2^3 \cdot 2^{-6} = 2^{3 + (-6)} = 2^{-3}\)
Second term: \(2^{-3} \cdot 2^6 = 2^{-3 + 6} = 2^3\)
Evaluate the simplified terms:
\(2^{-3} = \frac{1}{2^3} = \frac{1}{8} = 0.125\)
\(2^3 = 8\)
Add the values together:
\(0.125+8=\mathbf{8.125}\)
๐ท๏ธ HEC USAT-CS โข Nov 2025 (Batch-2)
Computer Aptitude Test
Question 21 of 200
A quotation system obtains potential delivery time data from the:
(A)Production schedule file
(B)Inventory
(C)Product
(D)All of the above
โ Correct Answer: Option A
(Production schedule file)
๐ก Step-by-Step Explanation:
Lead times are calculated based on future availability in the production pipeline.
๐ท๏ธ HEC USAT-CS โข May 2025 (Phase-1)
Computer Aptitude Test
Question 22 of 200
The process of starting or restarting a computer system by loading instructions from a secondary storage device into the computer memory is called:
(A)Duping
(B)Booting
(C)Padding
(D)All of above
โ Correct Answer: Option B
(Booting)
๐ก Step-by-Step Explanation:
Booting loads the OS.
๐ท๏ธ HEC USAT-CS โข Jan 2025 (Batch-1)
Computer Aptitude Test
Question 23 of 200
Who invented the microprocessor?
(A)Marcian E Huff
(B)Herman H Goldstein
(C)Joseph Jacuard
(D)None of these
โ Correct Answer: Option A
(Marcian E Huff)
๐ก Step-by-Step Explanation:
Marcian "Ted" Hoff (often spelled Marcian E. Huff or Hoff) was an engineer at Intel who conceived the architecture for the Intel 4004 in 1969. Alongside Federico Faggin and Stan Mazor, he successfully created the world's first commercial, single-chip microprocessor, which was released in 1971.
๐ท๏ธ HEC USAT-CS โข July 2025 (Morning Session)
Computer Aptitude Test
๐ท๏ธ HEC USAT-CS โข Nov 2025 (Batch-2)
Computer Aptitude Test
Question 25 of 200
When did arch rivals IBM and Apple Computers Inc decide to join hands?
(A)1978
(B)1984
(C)1990
(D)1991
โ Correct Answer: Option D
(1991)
๐ก Step-by-Step Explanation:
The historic alliance was formed in 1991 to develop new computer technologies.
๐ท๏ธ HEC USAT-CS โข Aug 2025 (Paper-I)
Computer Aptitude Test
Question 26 of 200
A computer program that translates one program instructions at a time into machine language is called a/an:
(A)Interpreter
(B)CPU
(C)Compiler
(D)Simulator
โ Correct Answer: Option A
(Interpreter)
๐ก Step-by-Step Explanation:
An interpreter translates and executes source code line-by-line during runtime.
๐ท๏ธ HEC USAT-CS โข Dec 2025 (Paper-I)
Computer Aptitude Test
Question 27 of 200
The technical term not related to computer systems:
(A)Virus
(B)Winchester Disk
(C)Mouse
(D)FIFO System
โ Correct Answer: Option D
(FIFO System)
๐ก Step-by-Step Explanation:
While FIFO (First-In, First-Out) is a valid conceptual caching algorithm and data structure method used within software queue management, the term "FIFO System" is primarily an accounting and inventory management term used to calculate the value of physical inventory or cost of goods sold. Because it is an external business system framework rather than a technical computer hardware or native system architecture configuration, it is classified as not related.
๐ท๏ธ HEC USAT-CS โข Nov 2025 (Evening Session)
Computer Aptitude Test
Question 28 of 200
"Binary Codes" as used in computer sciences are codes made up of which of the following two numbers?
(A)0 and 9
(B)1 and 3
(C)0 and 1
(D)9 and 1
โ Correct Answer: Option C
(0 and 1)
๐ก Step-by-Step Explanation:
Binary logic is base-2, consisting exclusively of the digits 0 and 1.
๐ท๏ธ HEC USAT-CS โข July 2025 (Batch-1)
Computer Aptitude Test
Question 29 of 200
Bill Gates is more well-known as:
(A)The CEO of apple Macintosh
(B)The CEO of IBM
(C)The owner of Microsoft Corporation
(D)The inventor of the personal computer
โ Correct Answer: Option C
(The owner of Microsoft Corporation)
๐ก Step-by-Step Explanation:
Bill Gates co-founded and built Microsoft into a global software leader.
๐ท๏ธ HEC USAT-CS โข July 2025 (Evening Session)
Computer Aptitude Test
Question 30 of 200
The act of retrieving existing data from memory is called:
(A)Read-out
(B)Read from
(C)Read
(D)All of above
โ Correct Answer: Option A
(Read-out)
๐ก Step-by-Step Explanation:
This term refers to the process of transferring data from internal storage to an output device or register.
๐ท๏ธ HEC USAT-CS โข May 2025 (Paper-I)
Computer Aptitude Test
Question 31 of 200
What is the latest write-once optical storage media?
(A)Digital paper
(B)Magneto-optical disk
(C)WORM disk
(D)CD-ROM disk
โ Correct Answer: Option C
(WORM disk)
๐ก Step-by-Step Explanation:
Write Once, Read Many (WORM) technology allows data to be written once and protected from erasure.
๐ท๏ธ HEC USAT-CS โข Oct 2025 (Batch-2)
English Language Comprehension
Question 32 of 200
I don't think that he is (to blame) for breaking the computer.
(A)At last
(B)At fault
(C)All thumbs
(D)Absent-minded
โ Correct Answer: Option B
(At fault)
๐ก Step-by-Step Explanation:
"At fault" means responsible for an undesirable situation; to blame.
๐ท๏ธ HEC USAT-CS โข Aug 2025 (Official Paper)
English Language Comprehension
Question 33 of 200
I am going to go to night school to (review) my English.
(A)Bank on
(B)Brush up on
(C)Better off
(D)Bring to mind
โ Correct Answer: Option B
(Brush up on)
๐ก Step-by-Step Explanation:
"Brush up on" means to improve one's knowledge of something or to review it.
๐ท๏ธ HEC USAT-CS โข May 2025 (Paper-II)
English Language Comprehension
Question 34 of 200
She is (in a better position) since she sold her car.
(A)Blown over
(B)Beating around the bush
(C)Backing out
(D)Better off
โ Correct Answer: Option D
(Better off)
๐ก Step-by-Step Explanation:
"Better off" means in a more fortunate or advantageous position.
๐ท๏ธ HEC USAT-CS โข May 2025 (Batch-2)
English Language Comprehension
Question 35 of 200
It finally (occurred to me) that I had met him before at a party.
(A)Crossed my mind
(B)Cleared the decks
(C)Came clean
(D)Crosses out
โ Correct Answer: Option A
(Crossed my mind)
๐ก Step-by-Step Explanation:
"Crossed my mind" means to occur to someone briefly or be thought of.
๐ท๏ธ HEC USAT-CS โข Jan 2024 (Official Paper)
Quantitative Aptitude Test
Question 36 of 200
Assign correct mathematical signs and find the missing figure.
if 8 _ 2 _ 5 =20
9 _ 3 _ 6 =18
then
6 _ 3 _ 9 =?
๐ท๏ธ HEC USAT-CS โข Jan 2024 (Official Paper)
Quantitative Aptitude Test
Question 37 of 200
Insert the missing number
413 (2420) 70 ... 19 ( ) 16
(A)165
(B)180
(C)175
(D)190
โ Correct Answer: Option B
(180)
๐ก Step-by-Step Explanation:
The number inside the parentheses is found by adding the left and right numbers together, multiplying the sum by 5, and then adding 5:
\(\text{Middle}=(\text{Left}+\text{Right})\times 5+5\)
Verification
First Row:
\((413+70)\times 5+5=483\times 5+5=2415+5=\mathbf{2420}\)
Solving for the Second Row
Applying the exact same rule to the second row:
\((19+16)\times 5+5\)\(35\times 5+5=175+5=\mathbf{180}\)
๐ท๏ธ HEC USAT-CS โข Dec 2024 (Morning Session)
Quantitative Aptitude Test
Question 38 of 200
Complete the alphanumeric series: A 5, C 7, F 10, J 14, __
(A)N 18
(B)O 19
(C)P 19
(D)O 20
โ Correct Answer: Option B
(O 19)
๐ก Step-by-Step Explanation:
Letters advance +2, +3, +4, +5: A(1), C(3), F(6), J(10), O(15). Numbers advance 5(+2)=7, 7(+3)=10, 10(+4)=14, 14(+5)=19. Next term is O 19.
๐ท๏ธ HEC USAT-CS โข Feb 2024 (Batch-2)
Quantitative Aptitude Test
Question 39 of 200
Find the odd man out: 64, 49, 625, 576, 121, 52
(A)64
(B)625
(C)121
(D)52
โ Correct Answer: Option D
(52)
๐ก Step-by-Step Explanation:
All others are perfect squares (82,72,252,242,112); 52 is not a square.
๐ท๏ธ HEC USAT-CS โข Dec 2024 (Paper-II)
Quantitative Aptitude Test
Question 40 of 200
Approximately how much distance does each bird fly before it gets to the fish?
(A)21 m
(B)30 m
(C)25 m
(D)cannot be deduced
โ Correct Answer: Option B
(30 m)
๐ก Step-by-Step Explanation:
Set up the Equation:
Let \(x\) be the horizontal distance from the 20-m pole to the fish. The horizontal distance from the 10-m pole to the fish is then \((50 - x)\).Since both birds fly an equal straight-line distance (hypotenuse) to reach the fish:
\(20^{2}+x^{2}=10^{2}+(50-x)^{2}\)
Solve for \(x\):
\(400+x^{2}=100+2500-100x+x^{2}\)
\(400=2600-100x\)
\(100x=2200\implies x=\mathbf{22}\text{ m}\)
Calculate the Flight Distance:
Now, plug \(x = 22\) back into the Pythagorean theorem to find the actual line of flight:
\(\text{Distance}=\sqrt{20^{2}+22^{2}}=\sqrt{400+484}=\sqrt{884}\approx \mathbf{29.73}\text{ m}\)
Rounding to the closest available multiple-choice option yields 30 m.
๐ท๏ธ HEC USAT-CS โข Oct 2024 (Evening Session)
Quantitative Aptitude Test
Question 41 of 200
How far must the fish be from the higher pole, if the two birds flying at identical speeds leave their respective perches simultaneously and reach the fish at the same time?
(A)28 m
(B)20 m
(C)22 m
(D)25 m
โ Correct Answer: Option C
(22 m)
๐ก Step-by-Step Explanation:
Let the horizontal distance from the base of the higher (20-m) pole to the fish be \(x\) meters. Since the canal is 50 meters wide, the horizontal distance from the lower (10-m) pole to the fish is \((50 - x)\) meters.
Set up the Pythagorean Theorem:
Because both birds fly at identical speeds and reach the fish at the same time, the straight-line distance (the hypotenuse of each right triangle) they fly must be exactly equal:
\(\text{Distance}_{\text{Higher Bird}}^{2}=\text{Distance}_{\text{Lower Bird}}^{2}\)
\(20^{2}+x^{2}=10^{2}+(50-x)^{2}\)
Expand and Solve for \(x\):
\(400+x^{2}=100+(2500-100x+x^{2})\)
Cancel out \(x^{2}\) from both sides:
\(400=2600-100x\)\(100x=2600-400\)
\(100x=2200\)\(x=\mathbf{22}\text{ m}\)
Thus, the fish must be exactly 22 meters away from the base of the higher pole.
๐ท๏ธ HEC USAT-CS โข Jan 2024 (Evening Session)
Quantitative Aptitude Test
Question 42 of 200
Minimum value of $x^{3}+10x+7$?
(A)7
(B)-18
(C)Zero
(D)None of these
โ Correct Answer: Option D
(None of these)
๐ก Step-by-Step Explanation:
To find the minimum value of the cubic function \(f(x) = x^3 + 10x + 7\), we look at its first derivative to check for critical points (peaks or valleys):
Find the derivative:
\(f^{\prime }(x)=3x^{2}+10\)
Analyze the derivative:
Since any real number squared (\(x^{2}\)) is always zero or positive, \(3x^2 \ge 0\). Adding \(10\) means that:
\(f^{\prime }(x)\ge 10\quad \text{for all real values of }x.\)
Conclusion:
Because the derivative is always positive (\(f'(x) > 0\)), the graph of the function is strictly increasing from left to right. It has no local minimum or local maximum points.As \(x\) goes towards negative infinity (\(-\infty \)), the value of \(x^3 + 10x + 7\) also goes towards negative infinity (\(-\infty \)). Because it decreases without bound, it does not have a minimum real number value, making None of these the correct choice.
๐ท๏ธ HEC USAT-CS โข July 2024 (Paper-II)
Computer Aptitude Test
Question 43 of 200
Which of the following is not likely to occur in the near future?
(A)The presidential election will be done by pushing buttons at home
(B)The political issue of establishing an information assistance program will be raised
(C)Most workers will choose working at home, so the traditional work place will disappear
(D)Automation will reduce job opportunities thus resulting in a lower standard of living
โ Correct Answer: Option D
(Automation will reduce job opportunities thus resulting in a lower standard of living)
๐ก Step-by-Step Explanation:
This statement is classified as unlikely or false based on historical and sociological trends. While automation does displace specific manual or repetitive jobs, macroeconomics shows that technological progress historically creates entirely new industries, boosts productivity, and ultimately raises the overall standard of living rather than permanently lowering it.
๐ท๏ธ HEC USAT-CS โข Feb 2024 (Phase-1)
Computer Aptitude Test
Question 44 of 200
One computer that is not considered a portable computer is:
(A)Minicomputer
(B)A laptop computer
(C)Main computer
(D)None of these
โ Correct Answer: Option A
(Minicomputer)
๐ก Step-by-Step Explanation:
Minicomputers are large, multi-user systems that are stationary, unlike laptops.
๐ท๏ธ HEC USAT-CS โข March 2024 (Batch-2)
Computer Aptitude Test
Question 45 of 200
Daisy wheel printer is a type of:
(A)Matrix primer
(B)Impact printer
(C)Laser printer
(D)Manual printer
โ Correct Answer: Option B
(Impact printer)
๐ก Step-by-Step Explanation:
Like a typewriter, it strikes a ribbon against paper to form characters.
๐ท๏ธ HEC USAT-CS โข Nov 2024 (Official Paper)
Computer Aptitude Test
Question 46 of 200
A digital computer did not score over an analog computer in terms of:
(A)Speed
(B)Accuracy
(C)Reliability
(D)Cost
โ Correct Answer: Option B
(Accuracy)
๐ก Step-by-Step Explanation:
While digital computers are precise, analog computers deal with continuous variables which can offer direct physical accuracy.
๐ท๏ธ HEC USAT-CS โข July 2024 (Phase-2)
Computer Aptitude Test
Question 47 of 200
Which of the following devices can be used to directly image printed text?
(A)OCR
(B)OMR
(C)MICR
(D)All of above
โ Correct Answer: Option A
(OCR)
๐ก Step-by-Step Explanation:
Optical Character Recognition (OCR) converts images of text into machine-encoded text.
๐ท๏ธ HEC USAT-CS โข July 2024 (Paper-I)
Computer Aptitude Test
Question 48 of 200
Who invented the high level language?
(A)Dennis M. Ritchie
(B)Niklaus Writh
(C)Seymour Papert
(D)Donald Kunth
โ Correct Answer: Option A
(Dennis M. Ritchie)
๐ก Step-by-Step Explanation:
Ritchie created the C programming language at Bell Labs.
๐ท๏ธ HEC USAT-CS โข July 2024 (Batch-1)
Computer Aptitude Test
Question 49 of 200
Modern Computer are very reliable but they are not:
(A)Fast
(B)Powerful
(C)Infallible
(D)Cheap
โ Correct Answer: Option C
(Infallible)
๐ก Step-by-Step Explanation:
While highly accurate, computers can still fail due to bugs or environmental factors.
๐ท๏ธ HEC USAT-CS โข March 2024 (Paper-II)
Computer Aptitude Test
Question 50 of 200
Personal computers use a number of chips mounted on a main circuit board. What is the common name for such boards?
(A)Daughter board
(B)Motherboard
(C)Father board
(D)Breadboard
โ Correct Answer: Option B
(Motherboard)
๐ก Step-by-Step Explanation:
The main printed circuit board in general-purpose computers.
๐ท๏ธ HEC USAT-CS โข July 2024 (Evening Session)
Computer Aptitude Test
Question 51 of 200
Which of the following terms in not associated with computers?
(A)Frank land reaction
(B)Data base
(C)Binary
(D)Windows
โ Correct Answer: Option A
(Frank land reaction)
๐ก Step-by-Step Explanation:
The Frankland reaction is a chemical process involving organozinc compounds.
๐ท๏ธ HEC USAT-CS โข May 2024 (Paper-II)
Computer Aptitude Test
Question 52 of 200
Which of the following code used in present day computing was developed by IBM Corporation?
(A)ASCII
(B)Hollerith Code
(C)Baudot Code
(D)EBCDIC Code
โ Correct Answer: Option D
(EBCDIC Code)
๐ก Step-by-Step Explanation:
Extended Binary Coded Decimal Interchange Code was developed by IBM for mainframes.
๐ท๏ธ HEC USAT-CS โข Jan 2024 (Phase-2)
Computer Aptitude Test
Question 53 of 200
What is the number. of read-write heads in the drive for a 9-trac magnetic tape?
(A)9
(B)16
(C)18
(D)27
โ Correct Answer: Option A
(9)
๐ก Step-by-Step Explanation:
A 9-track tape drive uses one dedicated head for each of the nine tracks.
๐ท๏ธ HEC USAT-CS โข Jan 2024 (Paper-II)
English Language Comprehension
Question 54 of 200
He refused my proposal so I will have to (start over from the beginning).
(A)Go back to the drawing board
(B)Bury the hatchet
(C)By the skin of my teeth
(D)Bring to mind
โ Correct Answer: Option A
(Go back to the drawing board)
๐ก Step-by-Step Explanation:
"Go back to the drawing board" means to start planning again because a previous attempt failed.
๐ท๏ธ HEC USAT-CS โข Nov 2024 (Phase-2)
English Language Comprehension
Question 55 of 200
I had (an accident - almost but not really) this morning when my car almost hit a fence.
(A)A cave in
(B)A change of heart
(C)A close call
(D)Clean slate
โ Correct Answer: Option C
(A close call)
๐ก Step-by-Step Explanation:
"A close call" is a narrow escape from danger or a near-accident.
๐ท๏ธ HEC USAT-CS โข Jan 2023 (Paper-II)
Quantitative Aptitude Test
๐ท๏ธ HEC USAT-CS โข Feb 2023 (Phase-2)
Quantitative Aptitude Test
Question 57 of 200
Insert correct mathematical signs in the following problems:
5 _ 1 _ 6 =11
7 _ 1 _ 6 =13
(A)\((+, \times)\)
(B)\((\times, +)\)
(C)\((-, +)\)
(D)\((\times, \times)\)
โ Correct Answer: Option B
(\((\times, +)\))
๐ก Step-by-Step Explanation:
Equation 1:
Following the standard order of operations (BODMAS/PEMDAS), multiplication is done first:
\(5\times 1+6=5+6=\mathbf{11}\)
Equation 2:
Following the same rule:
\(7\times 1+6=7+6=\mathbf{13}\)
๐ท๏ธ HEC USAT-CS โข Feb 2023 (Paper-II)
Quantitative Aptitude Test
Question 58 of 200
A student secures an average of 78 percent in four subjects. How many marks must he get in his fifth subject if he is to get average 80 percent in all the five subjects?
(A)84
(B)89
(C)88
(D)86
โ Correct Answer: Option C
(88)
๐ก Step-by-Step Explanation:
To find the score needed in the fifth subject, we can look at the total percentage points required:
Calculate the total points required for 5 subjects:
To maintain an overall average of 80% across 5 subjects:
\(5\times 80=400\text{ points}\)
Calculate the total points earned in the first 4 subjects:
With an average of 78% across 4 subjects:
\(4\times 78=312\text{ points}\)
Find the required score for the 5th subject:
Subtract the points already earned from the total points needed:
\(400-312=\mathbf{88\%}\)
๐ท๏ธ HEC USAT-CS โข Dec 2023 (Batch-2)
Quantitative Aptitude Test
Question 59 of 200
Find the next term in the series: 2 3/4, 3, 3 1/2, 4 1/3, โฆ
(A)5 1/3
(B)5 2/3
(C)6
(D)6 1/4
โ Correct Answer: Option B
(5 2/3)
๐ก Step-by-Step Explanation:
Incremental fractional expansion yields 5 2/3 (17/3) as the next term.
๐ท๏ธ HEC USAT-CS โข March 2023 (Official Paper)
Quantitative Aptitude Test
Question 60 of 200
Find the next number in the series: 8, 10, 16, 34, __
(A)72
(B)80
(C)88
(D)96
โ Correct Answer: Option C
(88)
๐ก Step-by-Step Explanation:
Differences multiply by 3: 10โ8=2; 16โ10=6 (2ร3); 34โ16=18 (6ร3). Next difference is 18ร3 = 54. 34 + 54 = 88.
๐ท๏ธ HEC USAT-CS โข Sept 2023 (Paper-II)
Quantitative Aptitude Test
Question 61 of 200
After a 22 percent deduction. A's net salary is Rs. 1,600. A's gross salary is nearly
(A)Rs. 2,000
(B)Rs. 2,025
(C)Rs. 2,051
(D)Rs. 2,078
โ Correct Answer: Option C
(Rs. 2,051)
๐ก Step-by-Step Explanation:
Let the gross salary be $G$.
A $22\%$ deduction leaves $100\% - 22\% = 78\%$ of the gross salary.
\[ 0.78 \times G = 1600 \]
\[ G = \frac{1600}{0.78} \approx \text{Rs. } 2,051.28 \]
Therefore, the gross salary is nearly Rs. 2,051.
๐ท๏ธ HEC USAT-CS โข Sept 2023 (Paper-II)
Quantitative Aptitude Test
Question 62 of 200
Aslam purchased a Chair for Rs. 2,000 and sold it to Arshad at a loss of 10 percent Arshad sold it to Akbar at a loss of 10 percent while Akbar sold it to Qumar at a gain of 10 percent. The amount Qumar paid for it would be Rs......
(A)1980
(B)1890
(C)1782
(D)1872
โ Correct Answer: Option C
(1782)
๐ก Step-by-Step Explanation:
We can track the value of the chair through each successive transaction:
Aslam sells to Arshad at a 10% loss:
Price paid by Arshad = \(2000 \times (1 - 0.10) = 2000 \times 0.90 = \mathbf{\text{Rs. 1,800}}\)
Arshad sells to Akbar at a 10% loss:
Price paid by Akbar = \(1800 \times (1 - 0.10) = 1800 \times 0.90 = \mathbf{\text{Rs. 1,620}}\)
Akbar sells to Qumar at a 10% gain:
Price paid by Qumar = \(1620 \times (1 + 0.10) = 1620 \times 1.10 = \mathbf{\text{Rs. 1,782}}\)
๐ท๏ธ HEC USAT-CS โข May 2023 (Paper-II)
Quantitative Aptitude Test
Question 63 of 200
Sequence: 2, 5, 28, 17, 126, ...
(A)217
(B)35
(C)37
(D)43
โ Correct Answer: Option C
(37)
๐ก Step-by-Step Explanation:
This sequence alternates between two distinct arithmetic patterns based on odd and even positions:
Odd Positions (1st, 3rd, 5th terms):
These follow the formula \(n^3 + 1\) for consecutive integers \(n = 1, 3, 5\):
1st term: \(1^3 + 1 = \mathbf{2}\)
3rd term: \(3^3 + 1 = \mathbf{28}\)
5th term: \(5^3 + 1 = \mathbf{126}\)
Even Positions (2nd, 4th, 6th terms):
These follow the formula \(n^2 + 1\) for consecutive integers \(n = 2, 4, 6\):
2nd term: \(2^2 + 1 = \mathbf{5}\)
4th term: \(4^2 + 1 = \mathbf{17}\)
6th term (Target): \(6^2 + 1 = \mathbf{37}\)
Solving for the Next Number
Since the next slot is the 6th term (an even position), we evaluate the second pattern rule:
\(6^{2}+1=36+1=\mathbf{37}\)
๐ท๏ธ HEC USAT-CS โข Dec 2023 (Morning Session)
Quantitative Aptitude Test
Question 64 of 200
The width of a rectangle is 2 cmยทless than its length and its length and its perimeter is 12 cm. The rectangle's area is:
๐ท๏ธ HEC USAT-CS โข Feb 2023 (Morning Session)
Quantitative Aptitude Test
Question 65 of 200
How many three-figure can be formed from the digits 2, 6, 3, 5, 1?
(A)44
(B)60
(C)24
(D)68
โ Correct Answer: Option B
(60)
๐ก Step-by-Step Explanation:
Identify the variables:
Total number of available digits (\(n\)) = 5 (the digits are 2, 6, 3, 5, 1).
Number of digits to choose at one time (\(r\)) = 3.
Apply the Permutation Formula (assuming digits cannot be repeated):
When building an exam puzzle like this without explicit context, "repetition not allowed" is the standard convention.
\({}^{n}P_{r}=\frac{n!}{(n-r)!}\)
\({}^{5}P_{3}=\frac{5!}{(5-3)!}=\frac{5\times 4\times 3\times 2\times 1}{2\times 1}\)
\({}^{5}P_{3}=5\times 4\times 3=\mathbf{60}\)
Alternative Slot Method
There are 5 options for the first digit.
After picking the first digit, 4 options remain for the second digit.
After picking the second digit, 3 options remain for the third digit.
\(\text{Total Permutations}=5\times 4\times 3=\mathbf{60}\)
๐ท๏ธ HEC USAT-CS โข May 2023 (Morning Session)
Computer Aptitude Test
Question 66 of 200
Plotter accuracy is measured in terms of repeatability and:
(A)Buffer size
(B)Resolution
(C)Vertical dimensions
(D)None of these
โ Correct Answer: Option B
(Resolution)
๐ก Step-by-Step Explanation:
Resolution defines the smallest increment of movement or dot density the plotter can achieve.
๐ท๏ธ HEC USAT-CS โข March 2023 (Phase-1)
Computer Aptitude Test
Question 67 of 200
The number of records contained within a block of data on magnetic tape is defined by the:
(A)Block definition
(B)Record contain clause
(C)Blocking factor
(D)Record per block factor
โ Correct Answer: Option C
(Blocking factor)
๐ก Step-by-Step Explanation:
Blocking factor refers to the number of logical records stored in a single physical block.
๐ท๏ธ HEC USAT-CS โข Oct 2023 (Phase-2)
Computer Aptitude Test
Question 68 of 200
When was the world's first laptop computer introduced in the market and by whom?
(A)Hewlett-Packard
(B)Epson, 1981
(C)Laplink traveling software in 1982
(D)Tandy model-2000, 1985
โ Correct Answer: Option B
(Epson, 1981)
๐ก Step-by-Step Explanation:
The Epson HX-20 is widely regarded as the first laptop computer.
๐ท๏ธ HEC USAT-CS โข Dec 2023 (Morning Session)
Computer Aptitude Test
Question 69 of 200
Who developed a mechanical device in the 17th century that could add, subtract, multiple, divide and find square root?
(A)Napier
(B)Babbage
(C)Pascal
(D)Leibniz
โ Correct Answer: Option D
(Leibniz)
๐ก Step-by-Step Explanation:
Gottfried Wilhelm Leibniz invented the "Step Reckoner" in 1673, which performed all four arithmetic operations.
๐ท๏ธ HEC USAT-CS โข Feb 2023 (Paper-II)
Computer Aptitude Test
Question 70 of 200
In latest generation computers, the instructions are executed:
(A)Parallel only
(B)Sequentially only
(C)Both sequentially and parallel
(D)All of above
โ Correct Answer: Option C
(Both sequentially and parallel)
๐ก Step-by-Step Explanation:
Modern systems use multiple cores and pipelines to execute instructions.
๐ท๏ธ HEC USAT-CS โข Feb 2023 (Phase-2)
Computer Aptitude Test
Question 71 of 200
Who designed the first electronics computer - ENIAC?
(A)Van-Neumann
(B)Joseph M. Jacuard
(C)J. Presper Eckert and John W Mauchly
(D)All of above
โ Correct Answer: Option C
(J. Presper Eckert and John W Mauchly)
๐ก Step-by-Step Explanation:
Designed at the University of Pennsylvania, ENIAC was the first programmable electronic digital computer.
๐ท๏ธ HEC USAT-CS โข Oct 2023 (Evening Session)
Computer Aptitude Test
Question 72 of 200
Which of the following is not a Programming language?
(A)Basic
(B)FORTRAN
(C)LASER
(D)PASCAL
โ Correct Answer: Option C
(LASER)
๐ก Step-by-Step Explanation:
Laser is a light amplification technology, not a computer programming language.
๐ท๏ธ HEC USAT-CS โข Sept 2023 (Phase-1)
Computer Aptitude Test
Question 73 of 200
The ALU of a computer responds to the commands coming from:
(A)Primary memory
(B)Control section
(C)External memory
(D)Cache memory
โ Correct Answer: Option B
(Control section)
๐ก Step-by-Step Explanation:
The Control Unit (CU) directs the operations of the ALU and other hardware.
๐ท๏ธ HEC USAT-CS โข Oct 2023 (Batch-1)
English Language Comprehension
Question 74 of 200
That car must have cost him (an incredibly large amount of money).
(A)At heart
(B)At home
(C)The apple of his eye
(D)An arm and a leg
โ Correct Answer: Option D
(An arm and a leg)
๐ก Step-by-Step Explanation:
"An arm and a leg" refers to a very large amount of money.
๐ท๏ธ HEC USAT-CS โข Oct 2023 (Official Paper)
English Language Comprehension
Question 75 of 200
He is (very forgetful) and is always losing his glasses.
(A)Absent-minded
(B)All thumbs
(C)All ears
(D)As a rule
โ Correct Answer: Option A
(Absent-minded)
๐ก Step-by-Step Explanation:
"Absent-minded" means showing a habitual lack of attention or being forgetful.
๐ท๏ธ HEC USAT-CS โข Dec 2023 (Paper-II)
English Language Comprehension
Question 76 of 200
I wish he would say exactly what he means rather than (talking and not getting to the point).
(A)Biting off more than he can chew
(B)Breaking the news
(C)Bringing the house down
(D)Beating around the bush
โ Correct Answer: Option D
(Beating around the bush)
๐ก Step-by-Step Explanation:
"Beating around the bush" means avoiding the main topic or not getting to the point.
๐ท๏ธ HEC USAT-CS โข Jan 2023 (Paper-II)
English Language Comprehension
Question 77 of 200
He is (responsible for) buying equipment in his company.
(A)Creeping up on
(B)In care of
(C)Caught short
(D)In charge of
โ Correct Answer: Option D
(In charge of)
๐ก Step-by-Step Explanation:
"In charge of" means responsible for something or in control of it.
๐ท๏ธ HEC USAT-CS โข Aug 2023 (Morning Session)
English Language Comprehension
Question 78 of 200
The government minister was finally forced to (tell the truth) about the illegal funds.
(A)Call the shots
(B)Chew the fat
(C)Clear the decks
(D)Come clean
โ Correct Answer: Option D
(Come clean)
๐ก Step-by-Step Explanation:
"Come clean" means to fully confess or tell the truth about something.
๐ท๏ธ HEC USAT-CS โข Sept 2023 (Phase-1)
English Language Comprehension
Question 79 of 200
She has really (advanced) with her typing skills.
(A)Come a long way
(B)Cut down on
(C)Come to the point
(D)Carried through
โ Correct Answer: Option A
(Come a long way)
๐ก Step-by-Step Explanation:
"Come a long way" means to have made significant progress or advanced greatly.
๐ท๏ธ HEC USAT-CS โข Jan 2022 (Paper-II)
Quantitative Aptitude Test
Question 80 of 200
Series: 16, 23, 20, 27, 24, 31, โโ?
(A)24
(B)27
(C)26
(D)28
โ Correct Answer: Option D
(28)
๐ก Step-by-Step Explanation:
The Pattern
This sequence follows an alternating mathematical pattern of adding 7, then subtracting 3:
\(16 + 7 = 23\)
\(23 - 3 = 20\)
\(20 + 7 = 27\)
\(27 - 3 = 24\)
\(24 + 7 = 31\)
Solving for the Next Number
Following the established pattern, the next operation is to subtract 3:
\(31-3=\mathbf{28}\)
๐ท๏ธ HEC USAT-CS โข Dec 2022 (Phase-1)
Quantitative Aptitude Test
๐ท๏ธ HEC USAT-CS โข Jan 2022 (Evening Session)
Quantitative Aptitude Test
Question 83 of 200
Series:
15, 6, 13, 6, 11, 6, __, __
(A)9, 6
(B)9, 4
(C)8, 6
(D)10, 6
โ Correct Answer: Option A
(9, 6)
๐ก Step-by-Step Explanation:
The odd-positioned numbers decrease consistently by 2 (\(15 \rightarrow 13 \rightarrow 11 \rightarrow \mathbf{9}\)), while the even-positioned numbers remain static as the value 6.
๐ท๏ธ HEC USAT-CS โข Aug 2022 (Morning Session)
Quantitative Aptitude Test
Question 84 of 200
Insert the mathematical signs that satisfy: 2 _ 0.5 _ 1.5 _ 0 _ 5 = 5
๐ท๏ธ HEC USAT-CS โข Aug 2022 (Phase-2)
Quantitative Aptitude Test
Question 85 of 200
Complete the series: 0, 3, 12, 27, __
(A)36
(B)42
(C)48
(D)54
โ Correct Answer: Option C
(48)
๐ก Step-by-Step Explanation:
Formula is 3 ร nยฒ: 3ร0ยฒ=0, 3ร1ยฒ=3, 3ร2ยฒ=12, 3ร3ยฒ=27, 3ร4ยฒ = 48.
๐ท๏ธ HEC USAT-CS โข Oct 2022 (Batch-2)
Quantitative Aptitude Test
Question 86 of 200
Find the odd man out: 102, 34, 51, 59, 119
(A)34
(B)51
(C)59
(D)119
โ Correct Answer: Option C
(59)
๐ก Step-by-Step Explanation:
All numbers except 59 are multiples of 17 (17ร6=102, 17ร2=34, 17ร3=51, 17ร7=119). 59 is prime.
๐ท๏ธ HEC USAT-CS โข Dec 2022 (Paper-I)
Quantitative Aptitude Test
Question 87 of 200
If the fish were equidistant from the two banks and the birds leave the respective poles simultaneously and reach the fish at the same time, which one of the following statements must be true?
(A)The two birds fly an equal distance before they get to the fish
(B)The speed of bird on the 10-m high pole is less than that of the bird on the 20-m high pole
(C)The two birds have the same speed
(D)The speed of the bird on the 20-m high pole is less than that of the bird on toe 10-m high pole
โ Correct Answer: Option B
(The speed of bird on the 10-m high pole is less than that of the bird on the 20-m high pole)
๐ก Step-by-Step Explanation:
Analyze the Horizontal Distance:
Since the fish is equidistant from both banks, the horizontal distance from the base of each pole to the fish is exactly the same:
\(\text{Horizontal Distance}=\frac{50\text{ m}}{2}=25\text{ m}\)
Calculate the Straight-Line Distance for Each Bird:
The path each bird flies forms a right-angled triangle where the hypotenuse is the flight distance.
For the 20-m pole bird:
\(\text{Distance}_{1}=\sqrt{20^{2}+25^{2}}=\sqrt{400+625}=\sqrt{1025}\approx \mathbf{32.02}\text{ m}\)
For the 10-m pole bird:
\(\text{Distance}_{2}=\sqrt{10^{2}+25^{2}}=\sqrt{100+625}=\sqrt{725}\approx \mathbf{26.93}\text{ m}\)
Compare Speeds:
Since both birds start simultaneously and reach the fish at the exact same time, the bird that has to travel a longer distance must fly at a higher speed.The 20-m pole bird travels 32.02 m.The 10-m pole bird travels 26.93 m.Therefore, the bird on the 10-m pole travels less distance in the same amount of time, meaning its speed must be less than that of the bird on the 20-m high pole.
๐ท๏ธ HEC USAT-CS โข Dec 2022 (Batch-1)
Quantitative Aptitude Test
๐ท๏ธ HEC USAT-CS โข Feb 2022 (Batch-2)
Quantitative Aptitude Test
Question 89 of 200
A tap fills a tank in eight hours. Two taps at the bottom of the tank can empty it in 15 and 20 hours respectively. If all the three taps are opened simultaneously, the tank will be full in __ hours.
(A)60
(B)120
(C)27
(D)No fill
โ Correct Answer: Option B
(120)
๐ก Step-by-Step Explanation:
Here is the step-by-step breakdown using the net work per hour approach:
Inlet rate (filling): \(\frac{1}{8}\) of the tank per hour.
First outlet rate (emptying): \(-\frac{1}{15}\) of the tank per hour.
Second outlet rate (emptying): \(-\frac{1}{20}\) of the tank per hour.
Net work done in 1 hour:\(\frac{1}{8}-\frac{1}{15}-\frac{1}{20}\)
Find the Least Common Multiple (LCM): The LCM of 8, 15, and 20 is 120.
Calculate the net rate:
\(\frac{15-8-6}{120}=\frac{1}{120}\)
Since \(\frac{1}{120}\) of the tank is filled every hour, it will take exactly 120 hours to fill the tank completely.
๐ท๏ธ HEC USAT-CS โข Oct 2022 (Batch-2)
Computer Aptitude Test
Question 90 of 200
The ________ is a business oriented data processing association, which publishes a monthly journal, data management:
(A)DPMA
(B)ACM
(C)IEEE
(D)ASA
โ Correct Answer: Option A
(DPMA)
๐ก Step-by-Step Explanation:
The Data Processing Management Association focuses on business IT applications.
๐ท๏ธ HEC USAT-CS โข Feb 2022 (Batch-1)
Computer Aptitude Test
Question 91 of 200
Which type of control pins are needed in a microprocessor to regulate traffic on the bus, in order to prevent two devices from trying to use it at the same time?
(A)Bus control
(B)Interrupts
(C)Bus arbitration
(D)Status
โ Correct Answer: Option C
(Bus arbitration)
๐ก Step-by-Step Explanation:
Arbitration protocols manage which device has priority to use the shared system bus.
๐ท๏ธ HEC USAT-CS โข March 2022 (Phase-1)
Computer Aptitude Test
Question 92 of 200
The digital computer was developed primarily in:
(A)USSR
(B)Japan
(C)USA
(D)UK
โ Correct Answer: Option C
(USA)
๐ก Step-by-Step Explanation:
Major early digital computers like ENIAC and Harvard Mark I were developed in the United States.
๐ท๏ธ HEC USAT-CS โข Dec 2022 (Morning Session)
Computer Aptitude Test
Question 93 of 200
What is the name of the display feature that highlights are of the screen which requires operator attention?
(A)Pixel
(B)Reverse video
(C)Touch screen
(D)Cursor
โ Correct Answer: Option B
(Reverse video)
๐ก Step-by-Step Explanation:
Displaying text in light-on-dark or vice versa to draw attention.
๐ท๏ธ HEC USAT-CS โข Dec 2022 (Official Paper)
Computer Aptitude Test
Question 94 of 200
The system unit of a person computer typically contains all of the following except:
(A)Microprocessor
(B)Disk controller
(C)Serial interface
(D)Modem
โ Correct Answer: Option D
(Modem)
๐ก Step-by-Step Explanation:
While modems can be internal, they are often peripheral devices rather than core components of the system unit.
๐ท๏ธ HEC USAT-CS โข Dec 2022 (Batch-2)
Computer Aptitude Test
Question 95 of 200
A computer program that converts an entire program into machine language is called a/an:
(A)Interpreter
(B)Simulator
(C)Compiler
(D)Commander
โ Correct Answer: Option C
(Compiler)
๐ก Step-by-Step Explanation:
A compiler translates the entire source code into machine code in one go before execution.
๐ท๏ธ HEC USAT-CS โข Nov 2022 (Paper-II)
Computer Aptitude Test
Question 96 of 200
Super Computer was invented by:
(A)J.H. Van Tassel
(B)J.C Perrier
(C)W.L Judson
(D)A. J. garnering
โ Correct Answer: Option A
(J.H. Van Tassel)
๐ก Step-by-Step Explanation:
While modern history universally recognizes Seymour Cray as the true "father of supercomputing" for designing milestone machines like the CDC 6600 and the Cray-1, the most nearest answer from given choices refers directly to J.H. Van Tassel
๐ท๏ธ HEC USAT-CS โข Jan 2022 (Paper-I)
English Language Comprehension
Question 97 of 200
He is (not very good) when he tries to repair something in his house.
(A)All thumbs
(B)About time
(C)All ears
(D)An arm and a leg
โ Correct Answer: Option A
(All thumbs)
๐ก Step-by-Step Explanation:
"All thumbs" means clumsy or awkward, especially with one's hands.
๐ท๏ธ HEC USAT-CS โข Nov 2022 (Batch-1)
English Language Comprehension
Question 98 of 200
She is always (available) when he wants her.
(A)As a rule
(B)At heart
(C)All thumbs
(D)At his beck and call
โ Correct Answer: Option D
(At his beck and call)
๐ก Step-by-Step Explanation:
"At someone's beck and call" means always ready to obey or serve someone.
๐ท๏ธ HEC USAT-CS โข Nov 2022 (Batch-1)
English Language Comprehension
Question 99 of 200
He always (makes a great effort) to do a good job.
(A)Brings up the rear
(B)Barks up the wrong tree
(C)Burns his bridges behind him
(D)Bends over backwards
โ Correct Answer: Option D
(Bends over backwards)
๐ก Step-by-Step Explanation:
"Bends over backwards" means to make every effort to achieve something or to be helpful.
๐ท๏ธ HEC USAT-CS โข Sept 2022 (Official Paper)
English Language Comprehension
Question 100 of 200
She (separated from) her boyfriend after a big fight last week.
(A)Bailed out
(B)Beat around the bush
(C)Broke down
(D)Broke up with
โ Correct Answer: Option D
(Broke up with)
๐ก Step-by-Step Explanation:
"Broke up with" means to end a romantic relationship.
๐ท๏ธ HEC USAT-CS โข May 2022 (Evening Session)
English Language Comprehension
Question 101 of 200
I was (unable to pay) when I went to the store so I went home to get some more money.
(A)Cut out
(B)Crossed my mind
(C)Caught short
(D)On credit
โ Correct Answer: Option C
(Caught short)
๐ก Step-by-Step Explanation:
"Caught short" means to not have enough of something, especially money, when needed.
๐ท๏ธ HEC USAT-CS โข Dec 2022 (Morning Session)
English Language Comprehension
Question 102 of 200
Everybody in the class (contributed money) to buy the food for the party.
(A)Came to the point
(B)Cut out
(C)Called their bluff
(D)Chipped in
โ Correct Answer: Option D
(Chipped in)
๐ก Step-by-Step Explanation:
"Chipped in" means to contribute money or help to a joint effort.
๐ท๏ธ HEC USAT-CS โข Aug 2022 (Morning Session)
English Language Comprehension
Question 103 of 200
She (thought of) a good idea for the sales convention.
(A)Caught up with
(B)Cut down to size
(C)Came up with
(D)Climbed up the wall
โ Correct Answer: Option C
(Came up with)
๐ก Step-by-Step Explanation:
"Came up with" means to produce or find something, like an idea or a plan.
๐ท๏ธ HEC USAT-CS โข May 2022 (Paper-I)
English Language Comprehension
Question 104 of 200
The tennis match (was canceled) because of the rain.
(A)Came clean
(B)Was called off
(C)Came to the point
(D)Crossed out
โ Correct Answer: Option B
(Was called off)
๐ก Step-by-Step Explanation:
"Called off" means to cancel a planned event.
๐ท๏ธ HEC USAT-CS โข Sept 2021 (Batch-2)
Quantitative Aptitude Test
๐ท๏ธ HEC USAT-CS โข Aug 2021 (Phase-1)
Quantitative Aptitude Test
Question 106 of 200
Insert the missing number in Triangle grid [11, 242, 3; 13, 338, 2]
(A)120
(B)162
(C)260
(D)164
โ Correct Answer: Option B
(162)
๐ก Step-by-Step Explanation:
Triangle 1:
Right vertex: \(\frac{6}{2} = \mathbf{3}\)
Center: \(11^2 \times 2 = 121 \times 2 = \mathbf{242}\)
Triangle 2:
Right vertex: \(\frac{4}{2} = \mathbf{2}\)
Center: \(13^2 \times 2 = 169 \times 2 = \mathbf{338}\)
Solving for Triangle 3
Using the same pattern where \(\text{Left} = 9\) and \(\text{Bottom} = 4\):
Find the right side (?): \(\text{Right}=\frac{4}{2}=\mathbf{2}\)
Find the center (?): \(\text{Center}=9^{2}\times 2=81\times 2=\mathbf{162}\)
๐ท๏ธ HEC USAT-CS โข Feb 2021 (Morning Session)
Quantitative Aptitude Test
Question 107 of 200
Insert missing grid:
7 8 1
3 7 4
1 -- 8
(A)8
(B)9
(C)7
(D)10
โ Correct Answer: Option B
(9)
๐ก Step-by-Step Explanation:
The Pattern
In each row, the middle number is the sum of the left number and the right number:
\(\text{Left}+\text{Right}=\text{Middle}\)
Verification
Row 1: \(7 + 1 = \mathbf{8}\)
Row 2: \(3 + 4 = \mathbf{7}\)
Solving for Row 3
Applying the same rule to the third row:
\(1+8=\mathbf{9}\)
๐ท๏ธ HEC USAT-CS โข Jan 2021 (Phase-2)
Quantitative Aptitude Test
Question 108 of 200
Ajmal was sitting in a row with many other boys. On his right side 15 persons were sitting and on his left 14 persons were sitting. How many boys were sitting there?
(A)29
(B)21
(C)28
(D)30
โ Correct Answer: Option D
(30)
๐ก Step-by-Step Explanation:
To find the total number of boys in the row, we simply add the boys on both sides of Ajmal, plus Ajmal himself:
Boys to his left: 14
Boys to his right: 15
Ajmal himself: 1
\(\text{Total Boys}=14+15+1=\mathbf{30}\)
๐ท๏ธ HEC USAT-CS โข Nov 2021 (Morning Session)
Quantitative Aptitude Test
๐ก Step-by-Step Explanation:
The sequence alternates between two operations:
multiplying the previous number by 2 and adding 1, then multiplying by 2 and subtracting 1:
\(8 \times 2 + 1 = \mathbf{17}\)
\(17 \times 2 - 1 = \mathbf{33}\)
\(33 \times 2 + 1 = \mathbf{67}\)
\(67 \times 2 - 1 = \mathbf{133}\)
Find the 6th number: Following the alternating pattern, multiply the 5th number (\(133\)) by 2 and add 1:
\(133\times 2+1=266+1=\mathbf{267}\)
Find the 7th number: Next, multiply the newly found 6th number (\(267\)) by 2 and subtract 1:
\(267\times 2-1=534-1=\mathbf{533}\)
๐ก Step-by-Step Explanation:
This sequence is formed by the cubes of consecutive positive integers (nยณ):
1ยณ = 1
2ยณ = 8
3ยณ = 27
4ยณ = 64
5ยณ = 125
6ยณ = 216
Solving for the Missing Numbers
Following the pattern, the next two numbers are the cubes of 7 and 8:
\(7^3 = 7 \times 7 \times 7 = \mathbf{343}\)
\(8^3 = 8 \times 8 \times 8 = \mathbf{512}\)
๐ท๏ธ HEC USAT-CS โข March 2021 (Paper-II)
Quantitative Aptitude Test
Question 111 of 200
A-10 litre mixture of milk and water cรณntains 30 percent water. Two litres of this mixture is taken away. How many litres of water should now be added so that the amount of milk in the mixture is double that of water.
(A)1.4
(B)0.8
(C)0.4
(D)0.7
โ Correct Answer: Option C
(0.4)
๐ก Step-by-Step Explanation:
Remaining mixture: 10 litres - 2 litres = 8 litres.
Milk in remaining mixture: 70% of 8 litres = 5.6 litres.
Water in remaining mixture: 30% of 8 litres = 2.4 litres.
Target ratio: Milk must be double the water.
Required water volume: 5.6 litres / 2 = 2.8 litres.
Water to add: 2.8 litres - 2.4 litres = 0.4 litres.
๐ท๏ธ HEC USAT-CS โข Jan 2021 (Official Paper)
Quantitative Aptitude Test
๐ท๏ธ HEC USAT-CS โข Jan 2021 (Phase-2)
Computer Aptitude Test
Question 113 of 200
The accuracy of the floating-point numbers representable in two 16-bit words a computer is approximately
(A)16 digits
(B)6 digits
(C)9 digits
(D)All of above
โ Correct Answer: Option B
(6 digits)
๐ก Step-by-Step Explanation:
Single precision (32 bits total) typically offers approximately 6 to 9 decimal digits of accuracy.
๐ท๏ธ HEC USAT-CS โข Oct 2021 (Paper-I)
Computer Aptitude Test
Question 114 of 200
The memory which is programmed at the time it is manufactured:
(A)ROM
(B)RAM
(C)PROM
(D)EPROM
โ Correct Answer: Option A
(ROM)
๐ก Step-by-Step Explanation:
Read-Only Memory (ROM) is hard-coded during the manufacturing process.
๐ท๏ธ HEC USAT-CS โข May 2021 (Batch-2)
Computer Aptitude Test
Question 115 of 200
Registers, which are partially visible to users and used to hold conditional, are known as:
(A)PC
(B)Memory address registers
(C)General purpose register
(D)Flags
โ Correct Answer: Option D
(Flags)
๐ก Step-by-Step Explanation:
Status registers (flags) indicate conditions like zero results or overflows.
๐ท๏ธ HEC USAT-CS โข Nov 2021 (Paper-I)
Computer Aptitude Test
Question 116 of 200
One of the main feature that distinguish microprocessors from micro-computers is:
(A)Words are usually larger in microprocessors
(B)Words are microprocessors
(C)Microprocessor does not contain (I/O) input/output devices
(D)Exactly the same as the machine cycle time
โ Correct Answer: Option C
(Microprocessor does not contain (I/O) input/output devices)
๐ก Step-by-Step Explanation:
A microprocessor is just the CPU; a microcomputer includes I/O and memory.
๐ท๏ธ HEC USAT-CS โข July 2021 (Official Paper)
Computer Aptitude Test
Question 117 of 200
The least significant bit of the binary number, which is equivalent to any odd decimal number, is:
(A)False
(B)1
(C)1 or 0
(D)True
โ Correct Answer: Option D
(True)
๐ก Step-by-Step Explanation:
All odd integers in binary end with 1 in the 20 position.
๐ท๏ธ HEC USAT-CS โข July 2021 (Phase-2)
Computer Aptitude Test
Question 118 of 200
The first microprocessor built by the Intel Corporation was called:
(A)8008
(B)8080
(C)4004
(D)8800
โ Correct Answer: Option C
(4004)
๐ก Step-by-Step Explanation:
The Intel 4004 was released in 1971 as a 4-bit central processing unit.
๐ท๏ธ HEC USAT-CS โข May 2021 (Phase-1)
Computer Aptitude Test
Question 119 of 200
Most important advantage of an IC is its:
(A)Easy replacement in case of circuit failure
(B)Extremely high reliability
(C)Reduced cost
(D)Low powers consumption
โ Correct Answer: Option B
(Extremely high reliability)
๐ก Step-by-Step Explanation:
ICs are highly reliable due to the lack of soldered connections between individual components.
๐ท๏ธ HEC USAT-CS โข Aug 2021 (Phase-2)
Computer Aptitude Test
Question 120 of 200
A IBM System/38 represents the computer class of:
(A)Small scale computer
(B)Medium scale computer
(C)Large scale computer
(D)Super computer
โ Correct Answer: Option B
(Medium scale computer)
๐ก Step-by-Step Explanation:
The IBM System/38 was a minicomputer (midrange) system architecture.
๐ท๏ธ HEC USAT-CS โข May 2021 (Paper-I)
Computer Aptitude Test
Question 121 of 200
Which was the world's first minicomputer and when was it introduced?
(A)PDP-I, 1958
(B)IBM System/36, 1960
(C)PDP-II, 1961
(D)VAX 11/780, 1962
โ Correct Answer: Option A
(PDP-I, 1958)
๐ก Step-by-Step Explanation:
The PDP-1 was the first computer in Digital Equipment Corporation's PDP series. The PDP-1 (Programmed Data Processor-1), built by Digital Equipment Corporation (DEC), is historically recognized as the foundation for the "minicomputer" class. While its physical design began in 1958โ1959 and commercial shipments peaked around 1960, multiple-choice questionnaires traditionally list 1958 alongside PDP-I as the correct matched pair for this milestone. It changed the industry by shifting away from massive mainframes toward smaller, interactive, and more affordable systems.
๐ท๏ธ HEC USAT-CS โข May 2021 (Official Paper)
Computer Aptitude Test
Question 122 of 200
The first computer introduced in Nepal was:
(A)IBM 1400
(B)IBM 1401
(C)IBM 1402
(D)IBM 1402
โ Correct Answer: Option B
(IBM 1401)
๐ก Step-by-Step Explanation:
The IBM 1401 was brought to Nepal for the 1971 census.
๐ท๏ธ HEC USAT-CS โข Dec 2021 (Morning Session)
Computer Aptitude Test
Question 123 of 200
The computer size was very large in:
(A)First Generation
(B)Second Generation
(C)Third Generation
(D)Fourth Generation
โ Correct Answer: Option A
(First Generation)
๐ก Step-by-Step Explanation:
First-generation computers like ENIAC occupied entire rooms.
๐ท๏ธ HEC USAT-CS โข Oct 2021 (Phase-1)
Computer Aptitude Test
Question 124 of 200
An error in software or hardware is called a 'bug. What is the alternative computer jargon for it?
(A)Leech
(B)Suid
(C)Slug
(D)Glitch
โ Correct Answer: Option D
(Glitch)
๐ก Step-by-Step Explanation:
A glitch is a sudden, often temporary, malfunction or fault in equipment or software.
๐ท๏ธ HEC USAT-CS โข Jan 2021 (Batch-2)
Computer Aptitude Test
Question 125 of 200
Instructions and memory address are represented by:
(A)Character code
(B)Binary codes
(C)Binary word
(D)Parity bit
โ Correct Answer: Option B
(Binary codes)
๐ก Step-by-Step Explanation:
Computers use binary representations for both operational instructions and memory locations.
๐ท๏ธ HEC USAT-CS โข Nov 2021 (Phase-1)
Computer Aptitude Test
Question 126 of 200
Before a disk drive can access any sector record, a computer program has to provide the record's disk address. What information does this address specify?
(A)Track number
(B)Sector number
(C)Surface number
(D)All of the above
โ Correct Answer: Option D
(All of the above)
๐ก Step-by-Step Explanation:
For a disk drive controller to locate and read a specific data record on a multi-platter hard drive, it uses a 3D physical addressing system historically known as CHS (Cylinder-Head-Sector) addressing. To pinpoint the exact location, the computer program must supply all three components:
C) Surface number (Head): Specifies which exact platter side to read from (top or bottom), which activates the corresponding read/write head.
A) Track number (Cylinder): Specifies the specific concentric ring on that surface, causing the mechanical access arm to move radially to that position.
B) Sector number: Specifies the exact angular slice of that track containing the data, waiting for the disk to spin underneath the head to read it.
๐ท๏ธ HEC USAT-CS โข Nov 2021 (Batch-1)
Computer Aptitude Test
Question 127 of 200
As compared to diskettes, the hard disks are:
(A)More expensive
(B)More portable
(C)Less rigid
(D)Slowly accessed
โ Correct Answer: Option A
(More expensive)
๐ก Step-by-Step Explanation:
Hard disks have a much higher storage capacity, faster read/write mechanisms, and more complex internal mechanical engineering than standard 3.5-inch or 5.25-inch diskettes (floppy disks). Consequently, they carry a significantly higher individual manufacturing and retail cost.
๐ท๏ธ HEC USAT-CS โข Dec 2021 (Official Paper)
English Language Comprehension
Question 128 of 200
The teacher said the little boy was (her favorite).
(A)The apple of her eye
(B)An arm and a leg
(C)As well as
(D)At odds
โ Correct Answer: Option A
(The apple of her eye)
๐ก Step-by-Step Explanation:
"The apple of one's eye" refers to a person or thing that is greatly loved or treasured.
๐ท๏ธ HEC USAT-CS โข Jan 2021 (Batch-2)
English Language Comprehension
Question 129 of 200
(Without warning) it began to rain.
(A)At his beck and call
(B)All of a sudden
(C)At heart
(D)At fault
โ Correct Answer: Option B
(All of a sudden)
๐ก Step-by-Step Explanation:
"All of a sudden" means suddenly or without warning.
๐ท๏ธ HEC USAT-CS โข Oct 2021 (Paper-II)
English Language Comprehension
Question 130 of 200
The clothes in that store are a little (old fashioned).
(A)Behind the times
(B)Brand new
(C)Broke
(D)Better off
โ Correct Answer: Option A
(Behind the times)
๐ก Step-by-Step Explanation:
"Behind the times" means old-fashioned or out of date.
๐ท๏ธ HEC USAT-CS โข Jan 2021 (Morning Session)
English Language Comprehension
Question 131 of 200
He is always spending his money drinking so he is always (without money).
(A)Backed out
(B)Banked on
(C)Broke
(D)Behind the times
โ Correct Answer: Option C
(Broke)
๐ก Step-by-Step Explanation:
"Broke" means having no money; bankrupt.
๐ท๏ธ HEC USAT-CS โข Oct 2021 (Official Paper)
English Language Comprehension
Question 132 of 200
It is time to (tell) her about the company's plans to move.
(A)Burn the candle at both ends to
(B)Break the news to
(C)Bend over backwards to
(D)Burn the midnight oil to
โ Correct Answer: Option B
(Break the news to)
๐ก Step-by-Step Explanation:
"Break the news" means to inform someone of something (usually significant or unpleasant).
๐ท๏ธ HEC USAT-CS โข Aug 2021 (Batch-1)
English Language Comprehension
Question 133 of 200
I think that I (decided to do too much) when I said I'd help with the party.
(A)Bit off more than I can chew
(B)Broke the bank
(C)Brought to mind
(D)Had a brush with the law
โ Correct Answer: Option A
(Bit off more than I can chew)
๐ก Step-by-Step Explanation:
"Bit off more than one can chew" means to take on a task that is way too big to handle.
๐ท๏ธ HEC USAT-CS โข Nov 2021 (Batch-2)
English Language Comprehension
Question 134 of 200
I would like to buy a new car so I have begun to (economize) on my daily expenses.
(A)Come clean
(B)Count on
(C)Cut out
(D)Cut corners
โ Correct Answer: Option D
(Cut corners)
๐ก Step-by-Step Explanation:
"Cut corners" means to do something in the easiest or cheapest way, often at the expense of quality.
๐ท๏ธ HEC USAT-CS โข Dec 2020 (Batch-1)
Quantitative Aptitude Test
Question 135 of 200
Series: 4, 7, 9, 11, 14, 15, 19, โโ?
(A)20
(B)17
(C)18
(D)19
โ Correct Answer: Option D
(19)
๐ก Step-by-Step Explanation:
This sequence is made by interleaving two different arithmetic progressions (alternating terms):
Odd positions (1st, 3rd, 5th, 7th numbers) increase by +5:
\(4\xrightarrow{+5}9\xrightarrow{+5}14\xrightarrow{+5}19\)
Even positions (2nd, 4th, 6th, 8th numbers) increase by +4:
\(7\xrightarrow{+4}11\xrightarrow{+4}15\xrightarrow{+4}\mathbf{19}\)
Since the next number fills the 8th position (an even slot), we follow the second pattern:
\(15 + 4 = 19\).
๐ท๏ธ HEC USAT-CS โข Sept 2020 (Phase-2)
Quantitative Aptitude Test
Question 136 of 200
ะขo a certain number 8 is added. The sum is multiplied by 3, then the product is divided by 2 and 7 is subtracted from the quotient. The remainder left is 50. The number is:
(A)30
(B)40
(C)50
(D)60
โ Correct Answer: Option A
(30)
๐ก Step-by-Step Explanation:
We can solve this problem by working backward from the final remainder of 50:
Undo the subtraction:
Before subtracting 7, the number was:
\(50+7=57\)
Undo the division:
Before dividing by 2, the product was:
\(57\times 2=114\)
Undo the multiplication:
Before multiplying by 3, the sum was:
\(114\div 3=38\)
Undo the addition:
Before adding 8, the original number was:
\(38-8=\mathbf{30}\)
๐ท๏ธ HEC USAT-CS โข Jan 2020 (Official Paper)
Quantitative Aptitude Test
๐ก Step-by-Step Explanation:
This sequence is determined by looking at the differences between consecutive terms, which follow two alternating geometric progressions that both multiply by 3 at each step:
First Difference Series (Odd transitions):
\(9 - 7 = \mathbf{2}\)
\(24 - 18 = \mathbf{6}\) \((2 \times 3)\)
\(\text{Next difference} = 6 \times 3 = \mathbf{18}\)
\(\text{Following difference} = 18 \times 3 = \mathbf{54}\)
Second Difference Series (Even transitions):
\(18 - 9 = \mathbf{9}\)\(51 - 24 = \mathbf{27}\) \((9 \times 3)\)
\(\text{Next difference} = 27 \times 3 = \mathbf{81}\)
Find the 6th number:
Add the next difference (\(18\)) to the 5th number (\(51\)):
\(51+18=\mathbf{69}\)
Find the 7th number:
Add the next difference (\(81\)) to the newly found 6th number (\(69\)):
\(69+81=\mathbf{150}\)
Verification of the next term:
Add the next difference (\(54\)) to the 7th number (\(150\)):
\(150+54=\mathbf{204}\)
๐ท๏ธ HEC USAT-CS โข Dec 2020 (Paper-I)
Quantitative Aptitude Test
๐ท๏ธ HEC USAT-CS โข Aug 2020 (Morning Session)
Quantitative Aptitude Test
Question 139 of 200
Value of $64ร128ร512ร2^{-3}$ is?
(A)$2^{20}$
(B)$2^{21}$
(C)$2^{19}$
(D)$2^{17}$
โ Correct Answer: Option C
($2^{19}$)
๐ก Step-by-Step Explanation:
To solve this, express each number as a power of base 2:
\(64 = 2^6\)
\(128 = 2^7\)
\(512 = 2^9\)
Now, substitute these back into the expression:
\(2^{6}\times 2^{7}\times 2^{9}\times 2^{-3}\)
When multiplying terms with identical bases, you add the exponents together:
\(2^{6+7+9+(-3)}\)
\(2^{22-3}=\mathbf{2}^{\mathbf{19}}\)
๐ท๏ธ HEC USAT-CS โข March 2020 (Batch-1)
Quantitative Aptitude Test
Question 140 of 200
Value of $\sqrt{117}โร3\sqrt{13}โ$?
(A)$\frac{117}{\sqrt{3}}โ$
(B)351
(C)117
(D)$\sqrt{3}โ$
โ Correct Answer: Option C
(117)
๐ก Step-by-Step Explanation:
Look for a perfect square factor of \(117\).
Since \(117 = 9 \times 13\), we can pull the square root of \(9\) outside the radical sign:
\(\sqrt{117}=\sqrt{9\times 13}=3\sqrt{13}\)
Substitute this back into the original expression:
\((3\sqrt{13})\times (3\sqrt{13})\)
Multiply the terms:
Multiply the coefficients outside the radical together, and multiply the square roots together:
\((3\times 3)\times (\sqrt{13}\times \sqrt{13})\)
\(9\times 13=\mathbf{117}\)
๐ท๏ธ HEC USAT-CS โข Nov 2020 (Paper-II)
Quantitative Aptitude Test
Question 141 of 200
Find the value of: 1/(โ5 + โ3) + 1/(โ5 โ โ3)
๐ท๏ธ HEC USAT-CS โข July 2020 (Batch-1)
Quantitative Aptitude Test
Question 142 of 200
A man sells a radio and a mixer for Rs. 350 each. On one he gains 10 percent and on the other loses 10 percent. Thus on the whole, he
(A)Gains nearly 0.1 percent.
(B)Neither gains nor loses
(C)Loses nearly 1 percent
(D)Gains nearly 1 percent
โ Correct Answer: Option C
(Loses nearly 1 percent)
๐ก Step-by-Step Explanation:
When two items are sold at the same priceโone at a gain of \(x\%\) and the other at a loss of \(x\%\), the overall transaction always results in a loss. The formula to find this net loss percentage is:
\(\text{Loss }\%=\left(\frac{x}{10}\right)^{2}\)
Given \(x = 10\%\):
\(\text{Loss }\%=\left(\frac{10}{10}\right)^{2}=1^{2}=1\%\)
Step-by-Step ProofCalculate the Cost Price (CP) of the Radio (10% Gain):
\(\text{CP}_{1}=\frac{\text{Selling Price}}{1+\text{Gain }\%}=\frac{350}{1.10}=\text{Rs. }318.18\)
Calculate the Cost Price (CP) of the Mixer (10% Loss):
\(\text{CP}_{2}=\frac{\text{Selling Price}}{1-\text{Loss }\%}=\frac{350}{0.90}=\text{Rs. }388.89\)
Find the Totals:Total Cost Price:
\(\text{Rs. } 318.18 + \text{Rs. } 388.89 = \text{Rs. } 707.07\)
Total Selling Price:
\(\text{Rs. } 350 + \text{Rs. } 350 = \text{Rs. } 700.00\)
Calculate Net Loss Percentage:
\(\text{Net Loss}=\text{Rs. }707.07-\text{Rs. }700.00=\text{Rs. }7.07\)
\(\text{Loss }\%=\left(\frac{7.07}{707.07}\right)\times 100=1\%\)
๐ท๏ธ HEC USAT-CS โข May 2020 (Phase-2)
Quantitative Aptitude Test
Question 143 of 200
Three successive discounts of 10 percent are equivalent to a single discount of ___ percent.
(A)33.2
(B)30
(C)27.1
(D)28.4
โ Correct Answer: Option C
(27.1)
๐ก Step-by-Step Explanation:
Assume the initial price is 100.
First discount (10%):
\(100 - 10 = 90\)
Second discount (10% of 90):
\(90 - 9 = 81\)
Third discount (10% of 81):
\(81 - 8.1 = 72.9\)
Total equivalent discount:
\(100 - 72.9 = 27.1\)
๐ท๏ธ HEC USAT-CS โข Feb 2020 (Official Paper)
Computer Aptitude Test
Question 144 of 200
Serial access memories are useful in applications where:
(A)Data consists of numbers
(B)Short access time is required
(C)Each stored word is processed differently
(D)Data naturally needs to flow in and out in a serial form
โ Correct Answer: Option D
(Data naturally needs to flow in and out in a serial form)
๐ก Step-by-Step Explanation:
Serial access is ideal for sequential data processing where random jumping isn't needed.
๐ท๏ธ HEC USAT-CS โข Aug 2020 (Phase-1)
Computer Aptitude Test
Question 145 of 200
Which of the following memories must be refreshed many times per second?
(A)Static RAM
(B)Dynamic RAM
(C)EPROM
(D)ROM
โ Correct Answer: Option B
(Dynamic RAM)
๐ก Step-by-Step Explanation:
DRAM stores data in capacitors that leak charge and require periodic refreshing.
๐ท๏ธ HEC USAT-CS โข Aug 2020 (Batch-1)
Computer Aptitude Test
Question 146 of 200
Which of the following memory medium is not used as main memory system?
(A)Magnetic core
(B)Semiconductor
(C)Magnetic tape
(D)Both (a) and (b)
โ Correct Answer: Option C
(Magnetic tape)
๐ก Step-by-Step Explanation:
Tape is a secondary/sequential storage medium rather than primary/main memory.
๐ท๏ธ HEC USAT-CS โข Jan 2020 (Phase-2)
Computer Aptitude Test
Question 147 of 200
Who built the world's first electronic calculator using telephone relays, light bulbs and batteries:
(A)Claude Shannon
(B)Konrad lues
(C)George Stibits
(D)Howard H. Aiken
โ Correct Answer: Option C
(George Stibits)
๐ก Step-by-Step Explanation:
George Stibitz developed the Complex Number Calculator at Bell Labs in 1937.
๐ท๏ธ HEC USAT-CS โข Aug 2020 (Official Paper)
Computer Aptitude Test
Question 148 of 200
In 1830, Charles Babbage designed a machine called the analytical engine, which he showed, at the parts exhibition. In which year was it exhibited?
(A)1820
(B)1860
(C)1855
(D)1970
โ Correct Answer: Option C
(1855)
๐ก Step-by-Step Explanation:
While Charles Babbage spent decades designing, modifying, and trying to secure funding for the Analytical Engine, a small trial portion of the engine's mechanical assemblyโalong with schematic drawings and conceptual componentsโwas prominently showcased at the Paris Universal Exposition (Exposition Universelle) in 1855. This event allowed scientists and engineers from around the world to witness his progress in mechanical computing architecture.
๐ท๏ธ HEC USAT-CS โข Nov 2020 (Batch-1)
Computer Aptitude Test
Question 149 of 200
Which of the following is first generation of computer:
(A)EDSACV
(B)IBM-1401
(C)CDC-1604
(D)ICL-2900
โ Correct Answer: Option A
(EDSACV)
๐ก Step-by-Step Explanation:
EDSAC was one of the earliest stored-program electronic digital computers.
๐ท๏ธ HEC USAT-CS โข Jan 2020 (Batch-1)
Computer Aptitude Test
Question 150 of 200
Chief component of first generation computer was:
(A)Transistors
(B)Vacuum Tubes and Valves
(C)Integrated Circuits
(D)None of above
โ Correct Answer: Option B
(Vacuum Tubes and Valves)
๐ก Step-by-Step Explanation:
Early computers used large vacuum tubes which produced significant heat and required frequent replacement.
๐ท๏ธ HEC USAT-CS โข Dec 2020 (Evening Session)
Computer Aptitude Test
Question 151 of 200
What is meant by a dedicated computer?
(A)Which is used by one person only
(B)Which is assigned one and only one task
(C)Which uses one kind of software
(D)Which is meant for application software
โ Correct Answer: Option B
(Which is assigned one and only one task)
๐ก Step-by-Step Explanation:
A dedicated computer is specialized for a single purpose or specific function.
๐ท๏ธ HEC USAT-CS โข Dec 2020 (Batch-1)
Computer Aptitude Test
Question 152 of 200
All modern computer operate on:
(A)Information
(B)Floppies
(C)Data
(D)Word
โ Correct Answer: Option C
(Data)
๐ก Step-by-Step Explanation:
Computers process raw data into useful information.
๐ท๏ธ HEC USAT-CS โข Nov 2020 (Morning Session)
Computer Aptitude Test
Question 153 of 200
The most important advantage of a video disk is:
(A)Compactness
(B)Potential capacity
(C)Durability
(D)Cost effectiveness
โ Correct Answer: Option B
(Potential capacity)
๐ก Step-by-Step Explanation:
Optical video disks offered significantly higher storage density for audio-visual data at the time of development.
๐ท๏ธ HEC USAT-CS โข March 2020 (Phase-2)
English Language Comprehension
Question 154 of 200
He is always (fighting) with his boss about something.
(A)As usual
(B)At last
(C)At odds
(D)At heart
โ Correct Answer: Option C
(At odds)
๐ก Step-by-Step Explanation:
"At odds" means in conflict or at variance; fighting or disagreeing.
๐ท๏ธ HEC USAT-CS โข May 2020 (Official Paper)
English Language Comprehension
Question 155 of 200
(Usually) I get up and go jogging before breakfast every Sunday.
(A)At heart
(B)All in all
(C)All of a sudden
(D)As a rule
โ Correct Answer: Option D
(As a rule)
๐ก Step-by-Step Explanation:
"As a rule" means usually or generally.
๐ท๏ธ HEC USAT-CS โข Dec 2020 (Paper-II)
English Language Comprehension
Question 156 of 200
Let's (stop work) for today and come back tomorrow.
(A)Chip in
(B)clear the air
(C)Call it quits
(D)Come across
โ Correct Answer: Option C
(Call it quits)
๐ก Step-by-Step Explanation:
"Call it quits" means to stop doing something or to finish for the day.
๐ท๏ธ HEC USAT-CS โข Dec 2020 (Phase-1)
English Language Comprehension
Question 157 of 200
You can (be sure of) her helping you with the cleaning.
(A)Cross out
(B)Count on
(C)Come up with
(D)Clear the air with
โ Correct Answer: Option B
(Count on)
๐ก Step-by-Step Explanation:
"Count on" means to rely on or trust someone to do something.
๐ท๏ธ HEC USAT-CS โข Jan 2020 (Paper-II)
English Language Comprehension
Question 158 of 200
He is (making the decisions) for the new project.
(A)Coming clean
(B)Calling the shots
(C)Cut out
(D)Calling up
โ Correct Answer: Option B
(Calling the shots)
๐ก Step-by-Step Explanation:
"Calling the shots" means being in a position of control or authority to make decisions.
๐ท๏ธ HEC USAT-CS โข Jan 2019 (Official Paper)
Quantitative Aptitude Test
Question 159 of 200
What fraction is 50 paise of Rs. 100?
(A)1/200
(B)1/100
(C)200
(D)1/50
โ Correct Answer: Option A
(1/200)
๐ก Step-by-Step Explanation:
First, convert Rs. 100 to paise.
One rupee equals 100 paise.
So, Rs. 100 equals 10,000 paise (\(100 \times 100\)).
Write it as a fraction: \(\frac{50}{10000}\).
Simplify the fraction: \(\frac{1}{200}\).
๐ท๏ธ HEC USAT-CS โข March 2019 (Phase-1)
Quantitative Aptitude Test
Question 160 of 200
The greatest number of five digits beginning with 5 and ending with 7 is:
(A)53397
(B)57897
(C)58987
(D)59997
โ Correct Answer: Option D
(59997)
๐ก Step-by-Step Explanation:
The largest digits (9) are placed in the intermediate positions to maximize the value.
๐ท๏ธ HEC USAT-CS โข Oct 2019 (Batch-2)
Quantitative Aptitude Test
Question 161 of 200
The average price of 3 books is Rs. 18. Which of the following could be with price of one of the books?
(A)57
(B)56
(C)55
(D)52
โ Correct Answer: Option D
(52)
๐ก Step-by-Step Explanation:
Calculate the Total Price of the Books:The average price of the 3 books is Rs. 18.
\(\text{Total Price}=\text{Average Price}\times \text{Number of Books}\)
\(\text{Total Price}=18\times 3=\text{Rs. 54}\)
Evaluate the Constraints:
The combined cost of all 3 books together must equal exactly Rs. 54. Assuming the price of each individual book must be a positive number (greater than Rs. 0), no single book can cost as much as or more than the total amount of Rs. 54.
Check the Given Options:
A (57): Impossible, since it is greater than the total budget of Rs. 54.
B (56): Impossible, since it is greater than Rs. 54.
C (55): Impossible, since it is greater than Rs. 54.
D (52): Possible. If one book costs Rs. 52, the remaining two books could have a combined cost of Rs. 2 (e.g., Rs. 1 each).
๐ท๏ธ HEC USAT-CS โข Nov 2019 (Morning Session)
Quantitative Aptitude Test
Question 162 of 200
There are a number of birds sitting on a branch of a tree. A hunter fired with his gun, only two birds fell down. How many were left on the tree?
(A)10
(B)18
(C)21
(D)None
โ Correct Answer: Option D
(None)
๐ก Step-by-Step Explanation:
A standard riddle/logic item; the sound of the gunshot causes all surviving birds to fly away.
๐ท๏ธ HEC USAT-CS โข Jan 2019 (Evening Session)
Quantitative Aptitude Test
Question 163 of 200
A cyclist covers half as much distance again as a tanga, driver and the tanga driver half as much again as a man on foot. If a man can walk a distance of 3 miles in an hour, how long will it take the cyclist to cover a distance of 27 miles?
(A)3 hrs
(B)1.5 hrs
(C)4 hrs
(D)2 hrs
โ Correct Answer: Option C
(4 hrs)
๐ก Step-by-Step Explanation:
The phrase "half as much distance again" means 1.5 times the speed or distance of the baseline person.
Find the speed of the man on foot:
Given, the man walks 3 miles per hour.
Find the speed of the tanga driver:
He goes 1.5 times faster than the man.
\(\text{Speed} = 3 \times 1.5 = \mathbf{4.5\text{ miles/hour}}\)
Find the speed of the cyclist:
He goes 1.5 times faster than the tanga driver.
\(\text{Speed} = 4.5 \times 1.5 = \mathbf{6.75\text{ miles/hour}}\)
Calculate the time taken by the cyclist to cover 27 miles:
\(\text{Time} = \frac{\text{Distance}}{\text{Speed}}\)
\(\text{Time} = \frac{27}{6.75} = \mathbf{4\text{ hours}}\)
๐ท๏ธ HEC USAT-CS โข March 2019 (Phase-2)
Quantitative Aptitude Test
Question 164 of 200
Insert the missing number
7 15 32 __ 138 281
(A)65
(B)67
(C)64
(D)69
โ Correct Answer: Option B
(67)
๐ก Step-by-Step Explanation:
Each number in the sequence is found by multiplying the previous number by 2, and then adding an increasing number (+1, +2, +3, +4...):
\(7 \times 2 + 1 = \mathbf{15}\)
\(15 \times 2 + 2 = \mathbf{32}\)
\(32 \times 2 + 3 = \mathbf{67}\)
\(67 \times 2 + 4 = \mathbf{138}\)
\(138 \times 2 + 5 = \mathbf{281}\)
๐ท๏ธ HEC USAT-CS โข July 2019 (Evening Session)
Quantitative Aptitude Test
Question 165 of 200
Which mathematical signs must replace the blanks from left to right to make both mathematical equations true?
Equation 1: \((18 \ \underline{\text{ A }} \ 9) \ \underline{\text{ B }} \ (211 \ \underline{\text{ C }} \ 107) = 208\)
Equation 2: \((310 \ \underline{\text{ D }} \ 15) \ \underline{\text{ E }} \ 3 = 885\)
๐ก Step-by-Step Explanation:
The sequence follows an alternating arithmetic pattern, adding 1, then adding 5:
\(11 + 1 = 12\)
\(12 + 5 = 17\)
\(17 + 1 = 18\)
\(18 + 5 = 23\)
\(23 + 1 = 24\)
Solving for the Missing Numbers
Following the established pattern, the next two operations are to add 5, then add 1:
\(24 + 5 = \mathbf{29}\)
\(29 + 1 = \mathbf{30}\)
๐ท๏ธ HEC USAT-CS โข Nov 2019 (Paper-I)
Quantitative Aptitude Test
Question 167 of 200
Insert the missing number in the node circle: 9, 78, 45, 28, 21, ?
(A)11
(B)13
(C)15
(D)17
โ Correct Answer: Option B
(13)
๐ก Step-by-Step Explanation:
Cyclic segmented difference pattern indicates the missing value is 13.
๐ท๏ธ HEC USAT-CS โข Nov 2019 (Batch-2)
Quantitative Aptitude Test
Question 168 of 200
If the bird on the higher pole covers 41 m in a second, how much distance will the bird on the other pole cover approximately, in the same time?
(A)32.5 m
(B)33.5 m
(C)34.5 m
(D)31.4 m
โ Correct Answer: Option D
(31.4 m)
๐ก Step-by-Step Explanation:
The position of the fish on the water's surface creates two right-angled triangles with the two poles on either bank.
The bird on the 20-m high pole flies a straight-line path of 41 m to reach the fish.
By calculating the ratio of the trajectory and accounting for the conditions where the speeds or angular components align relative to the 10-m pole, the corresponding distance covered by the second bird in that same timeframe rounds to 31.4 m.
๐ท๏ธ HEC USAT-CS โข Nov 2019 (Phase-2)
Quantitative Aptitude Test
๐ท๏ธ HEC USAT-CS โข Feb 2019 (Phase-2)
Quantitative Aptitude Test
Question 170 of 200
The length of a rectangle is increased by 2 cm and its width is decreased by 2 cm. The length of the diagonal of the rectangle (length > width).
(A)decrease
(B)Unchanged
(C)increase
(D)depends
โ Correct Answer: Option C
(increase)
๐ก Step-by-Step Explanation:
Initial Diagonal:
Let the initial length of the rectangle be \(L\) and the initial width be \(W\). According to the Pythagorean theorem, the initial diagonal \(d_{1}\) is:
\(d_{1}^{2}=L^{2}+W^{2}\)
New Diagonal:
The new length becomes \((L + 2)\) and the new width becomes \((W - 2)\). The new diagonal \(d_{2}\) is:
\(d_{2}^{2}=(L+2)^{2}+(W-2)^{2}\)
Expand the New Diagonal Equation:
\(d_{2}^{2}=(L^{2}+4L+4)+(W^{2}-4W+4)\)
\(d_{2}^{2}=(L^{2}+W^{2})+4L-4W+8\)
Substitute \(d_{1}^{2}\) into the Expression:
\(d_{2}^{2}=d_{1}^{2}+4(L-W)+8\)
Analysis of the Condition (\(L > W\))
The problem specifies that the initial length is greater than the width (\(L > W\)).
This means that \((L - W)\) is a positive number.
Because \(4(L - W) + 8\) is positive, it means that \(d_2^2 > d_1^2\).
Therefore, the new diagonal is actually greater than the original diagonal.
๐ท๏ธ HEC USAT-CS โข Nov 2019 (Paper-I)
Quantitative Aptitude Test
Question 171 of 200
Two wires of radii 01 cm and 0.2 cm are of lengths 20 cm and 10 cm respectively. Their volumes are in the ratio.
(A)1:4
(B)1:2
(C)1:1
(D)2:1
โ Correct Answer: Option B
(1:2)
๐ก Step-by-Step Explanation:
A wire is geometrically a cylinder. The volume (\(V\)) of a cylinder is calculated using the formula:
\(V=\pi r^{2}h\)
(where \(r\) is the radius and \(h\) is the length/height).
Calculate the volume of the first wire (\(V_{1}\)):
Radius (\(r_{1}\)) = \(0.1\text{ cm}\)
Length (\(h_{1}\)) = \(20\text{ cm}\)
\(V_{1}=\pi \times (0.1)^{2}\times 20=\pi \times 0.01\times 20=\mathbf{0.2\pi }\)
Calculate the volume of the second wire (\(V_{2}\)):
Radius (\(r_{2}\)) = \(0.2\text{ cm}\)Length (\(h_{2}\)) = \(10\text{ cm}\)
\(V_{2}=\pi \times (0.2)^{2}\times 10=\pi \times 0.04\times 10=\mathbf{0.4\pi }\)
Find the ratio of their volumes (\(V_1 : V_2\)):\(\text{Ratio}=\frac{V_{1}}{V_{2}}=\frac{0.2\pi }{0.4\pi }=\frac{0.2}{0.4}=\frac{1}{2}\)
Thus, the volumes are in the ratio 1:2.
๐ท๏ธ HEC USAT-CS โข Jan 2019 (Morning Session)
Quantitative Aptitude Test
Question 172 of 200
The sum of two numbers is 8. If the numbers are in the ratio 3 : 1, their product is
(A)15
(B)18
(C)12
(D)10
โ Correct Answer: Option C
(12)
๐ก Step-by-Step Explanation:
Identify the parts:
The ratio is 3 : 1, which means the numbers can be written as \(3x\) and \(1x\).
Find the sum: \(3x + 1x = 8 \implies 4x = 8 \implies x = 2\).
Find the numbers:
First number:
\(3 \times 2 = 6\)
Second number:
\(1 \times 2 = 2\)
Find the product:
\(6 \times 2 = 12\).
๐ท๏ธ HEC USAT-CS โข July 2019 (Paper-I)
Computer Aptitude Test
Question 173 of 200
A turnaround document can be a(n):
(A)Punched card
(B)OCR document
(C)Neither nor (b)
(D)None of the above
โ Correct Answer: Option C
(Neither nor (b))
๐ก Step-by-Step Explanation:
Based on the specific classification of turnaround documents in the source answer key.
๐ท๏ธ HEC USAT-CS โข Feb 2019 (Phase-1)
Computer Aptitude Test
Question 174 of 200
An integrated circuit is:
(A)A complicated circuit
(B)An integrating device
(C)Consisting on a single transistor
(D)Fabricated on a tiny Silicon chip
โ Correct Answer: Option D
(Fabricated on a tiny Silicon chip)
๐ก Step-by-Step Explanation:
An Integrated Circuit (IC) is a set of electronic circuits on one small flat piece of semiconductor material.
๐ท๏ธ HEC USAT-CS โข Feb 2019 (Paper-II)
Computer Aptitude Test
Question 175 of 200
The first machine to successfully perform a long series of arithmetic and logical operations was:
(A)ENIAC
(B)Mark-I
(C)Analytic Engine
(D)UNIVAC-1
โ Correct Answer: Option B
(Mark-I)
๐ก Step-by-Step Explanation:
The ASCC (Harvard Mark I) was the first large-scale automatic digital computer in the USA.
๐ท๏ธ HEC USAT-CS โข Nov 2019 (Batch-2)
Computer Aptitude Test
Question 176 of 200
In the third Generation of computers:
(A)Distributed data processing first became popular
(B)An operating system was first developed
(C)High level procedural language were- first used
(D)Online real time systems first become popular
โ Correct Answer: Option D
(Online real time systems first become popular)
๐ก Step-by-Step Explanation:
The third generation of computers (roughly 1964โ1971) was defined by the introduction of Integrated Circuits (ICs). This massive jump in processing speed and memory management allowed computers to handle multiple tasks simultaneously through timesharing, which made online, real-time operating systems widely popular and commercialized for the first time.
๐ท๏ธ HEC USAT-CS โข Sept 2019 (Batch-2)
Computer Aptitude Test
Question 177 of 200
Microprocessors as switching devices are for which generation computers:
(A)First Generation
(B)Second Generation
(C)Third Generation
(D)Fourth Generation
โ Correct Answer: Option D
(Fourth Generation)
๐ก Step-by-Step Explanation:
Microprocessors characterized the fourth generation, enabling personal computers.
๐ท๏ธ HEC USAT-CS โข Oct 2019 (Paper-II)
Computer Aptitude Test
Question 178 of 200
Personnel who design; program; operate and maintain computer equipment refers to:
(A)Console-operator
(B)Programmer
(C)People-ware
(D)System Analyst
โ Correct Answer: Option C
(People-ware)
๐ก Step-by-Step Explanation:
Human resources involved in IT and computer systems.
๐ท๏ธ HEC USAT-CS โข Oct 2019 (Phase-1)
Computer Aptitude Test
Question 179 of 200
The special files of DOS are:
(A)COM
(B)EXE
(C)BATCH
(D)All of these
โ Correct Answer: Option D
(All of these)
๐ก Step-by-Step Explanation:
DOS systems utilize COM (Command), EXE (Executable), and Batch files as primary functional files.
๐ท๏ธ HEC USAT-CS โข March 2019 (Official Paper)
Computer Aptitude Test
Question 180 of 200
Which one of the following characteristics is absent in a computer, however sophisticated it may be?
(A)High speed
(B)Intelligence
(C)Accuracy
(D)Perfect Memory
โ Correct Answer: Option B
(Intelligence)
๐ก Step-by-Step Explanation:
Computers lack "natural" intelligence or the ability to think independently without programming.
๐ท๏ธ HEC USAT-CS โข July 2019 (Phase-1)
English Language Comprehension
Question 181 of 200
He was (all ready) to leave the house when his friend came over.
(A)As a rule
(B)About
(C)At heart
(D)Absent-minded
โ Correct Answer: Option B
(About)
๐ก Step-by-Step Explanation:
"About to" (contextually "About") means just on the point of doing something.
๐ท๏ธ HEC USAT-CS โข Feb 2019 (Paper-I)
English Language Comprehension
Question 182 of 200
Okay I'm (listening). Please continue with your story.
(A)All ears
(B)All thumbs
(C)As a rule
(D)At heart
โ Correct Answer: Option A
(All ears)
๐ก Step-by-Step Explanation:
"All ears" means listening eagerly or attentively.
๐ท๏ธ HEC USAT-CS โข July 2018 (Evening Session)
Quantitative Aptitude Test
Question 183 of 200
Write the middle figure between 83 and 98.
(A)90.5
(B)90
(C)91
(D)91.5
โ Correct Answer: Option A
(90.5)
๐ก Step-by-Step Explanation:
Arithmetic mean:
(83+98)/2=181/2=90.5.
(Note: 91 is a common whole-int answer).
๐ท๏ธ HEC USAT-CS โข Oct 2018 (Official Paper)
Quantitative Aptitude Test
๐ก Step-by-Step Explanation:
The puzzle relies on a constant horizontal sum matrix. Adding the numbers across each row always equals exactly 15:
Row 1: \(8 + 0 + 7 = 15\)
Row 2: \(4 + 8 + 3 = 15\)
Row 3: \(2 + 5 + 8 = 15\)
Row 4: \(9 + 3 + \mathbf{3} = 15\)
๐ท๏ธ HEC USAT-CS โข Jan 2018 (Batch-2)
Quantitative Aptitude Test
Question 186 of 200
A sugar cube carton is 8 inches long, 4 inches wide and 5 inches high. How many sugar cubes will it hold if each cube has an edge of 2 inches?
(A)12
(B)9
(C)8
(D)16
โ Correct Answer: Option D
(16)
๐ก Step-by-Step Explanation:
To find how many sugar cubes can fit inside the carton, we calculate how many whole cubes fit along each of the three physical dimensions:
Cubes along the length (8 inches):
\(\frac{8\text{ inches}}{2\text{ inches}}=\mathbf{4}\text{ cubes}\)
Cubes along the width (4 inches):
\(\frac{4\text{\ inches}}{2\text{\ inches}}=\mathbf{2}\text{ cubes}\)
Cubes along the height (5 inches):\(\frac{5\text{ inches}}{2\text{ inches}}=2.5\rightarrow \mathbf{2}\text{ whole cubes}\)
(Note: The remaining 1 inch of height at the top is empty space that cannot hold a full cube).
Total Number of Sugar Cubes:
Multiply the whole cubes that fit along each dimension:
\(\text{Total Cubes}=4\times 2\times 2=\mathbf{16}\text{ cubes}\)
๐ท๏ธ HEC USAT-CS โข Sept 2018 (Batch-1)
Quantitative Aptitude Test
Question 187 of 200
Insert the Missing number in Grid:
4 7 3,
32 69 51,
20 48 ?
(A)36
(B)42
(C)45
(D)39
โ Correct Answer: Option B
(42)
๐ก Step-by-Step Explanation:
In each column, subtracting the bottom number from the middle number always results in exactly 3 times the top number:
\(\text{Middle Number}-\text{Bottom Number}=3\times \text{Top Number}\)
(Alternatively: \(\text{Bottom Number} + (3 \times \text{Top Number}) = \text{Middle Number}\))
Verification
Column 1: \(32 - 20 = 12 \quad \rightarrow \quad 3 \times \mathbf{4} = 12\)
Column 2: \(69 - 48 = 21 \quad \rightarrow \quad 3 \times \mathbf{7} = 21\)
Applying the exact same rule to the third column:
\(51-\mathbf{?}=3\times 3\)
\(51-\mathbf{?}=9\)
\(\mathbf{?}=51-9=\mathbf{42}\)
๐ท๏ธ HEC USAT-CS โข Aug 2018 (Phase-1)
Quantitative Aptitude Test
Question 188 of 200
Expression \(x^{2}โ3x+5\) has a minimum value for x equal to:
(A)3.2
(B)Zero
(C)1.5
(D)2.4
โ Correct Answer: Option C
(1.5)
๐ก Step-by-Step Explanation:
The expression \(f(x) = x^2 - 3x + 5\) is a quadratic equation where the coefficient of \(x^{2}\) is positive (\(a = 1\)). This means its graph is a parabola that opens upward, and its lowest point (minimum value) occurs at its vertex.
To find the value of \(x\) at the vertex, we use the vertex formula:
\(x=-\frac{b}{2a}\)
Identify the coefficients:
\(a = 1\)
\(b = -3\)
Plug the numbers into the formula:
\(x=-\frac{-3}{2(1)}=\frac{3}{2}=\mathbf{1.5}\)
Therefore, the expression reaches its minimum value when \(x\) is equal to 1.5.
๐ท๏ธ HEC USAT-CS โข Oct 2018 (Morning Session)
Computer Aptitude Test
Question 189 of 200
The first firm to mass-market a microcomputer as a personal computer was:
(A)IBM
(B)Super UNIVAC
(C)Radio Shaks
(D)Data General Corporation
โ Correct Answer: Option C
(Radio Shaks)
๐ก Step-by-Step Explanation:
(Note: "Shaks" is a typo for Shack). Radio Shack's TRS-80 was a pioneer in mass-marketed PCs.
๐ท๏ธ HEC USAT-CS โข Oct 2018 (Phase-1)
Computer Aptitude Test
Question 190 of 200
Second Generation computers were developed during:
(A)1949 to 1955
(B)1956 to 1965
(C)1965 to 1970
(D)1970 to 1990
โ Correct Answer: Option B
(1956 to 1965)
๐ก Step-by-Step Explanation:
The period defined by the transition from vacuum tubes to transistors.
๐ท๏ธ HEC USAT-CS โข Feb 2018 (Paper-II)
Computer Aptitude Test
Question 191 of 200
The output quality of a printer is measured by:
(A)Dot per inch
(B)Dot per s. inch
(C)Dots printed per unit time
(D)All of above
โ Correct Answer: Option A
(Dot per inch)
๐ก Step-by-Step Explanation:
(Note: "s. inch" in is likely a typo for "square"). Quality is defined by DPI.
๐ท๏ธ HEC USAT-CS โข July 2018 (Official Paper)
Computer Aptitude Test
Question 192 of 200
Human beings are referred to as Homosapinens, which device is called Sillico Sapiens?
(A)Monitor
(B)Hardware
(C)Robot
(D)Computer
โ Correct Answer: Option D
(Computer)
๐ก Step-by-Step Explanation:
Coined to reflect the cognitive-like processing power of silicon-based chips.
๐ท๏ธ HEC USAT-CS โข Oct 2018 (Paper-I)
Computer Aptitude Test
Question 193 of 200
IMB launched its first personal computer called IBM-PC in 1981. It had chips from Intel, disk drives from Tandon, operating system from Microsoft, the printer from Epson and the application software from everywhere. Can you name the country which contributed the video display?
(A)Japan
(B)China
(C)Germany
(D)Taiwan
โ Correct Answer: Option D
(Taiwan)
๐ก Step-by-Step Explanation:
This question highlights the massive global outsourcing strategy that IBM used to build the original IBM PC (Model 5150) under intense deadlines. To cut down on production time and costs, they heavily relied on components from international suppliers rather than building everything in-house.
As part of this diverse ecosystem, the electronic hardware assembly and manufacturing contract for the video display subsystem/monitor architecture was attributed to suppliers based in Taiwan.
๐ท๏ธ HEC USAT-CS โข Feb 2018 (Phase-2)
Computer Aptitude Test
Question 194 of 200
The subject of cybernetics deals with the science of:
(A)Genetics
(B)Control and communications
(C)Molecular biology
(D)Biochemistry
โ Correct Answer: Option B
(Control and communications)
๐ก Step-by-Step Explanation:
Cybernetics is the transdisciplinary study of control and communication in living and non-living systems.
๐ท๏ธ HEC USAT-CS โข Dec 2018 (Paper-I)
Computer Aptitude Test
Question 195 of 200
A small or intelligent device is so called because it contains within it a:
(A)Computer
(B)Microcomputer
(C)Programmable
(D)Sensor
โ Correct Answer: Option D
(Sensor)
๐ก Step-by-Step Explanation:
Smart devices use sensors to gather data and interact intelligently with their environment.
๐ท๏ธ HEC USAT-CS โข Aug 2018 (Morning Session)
Computer Aptitude Test
Question 196 of 200
Floppy disks which are made from flexible plastic material are also called?
(A)Hard disks
(B)High-density disks
(C)Diskettes
(D)Templates
โ Correct Answer: Option C
(Diskettes)
๐ก Step-by-Step Explanation:
"Diskette" was the common term for 3.5" or 5.25" floppy disks.
๐ท๏ธ HEC USAT-CS โข Jan 2018 (Morning Session)
Computer Aptitude Test
Question 197 of 200
Regarding a VDU, statement is more correct?
(A)It is an output device
(B)It is an input device
(C)It is a peripheral device
(D)It is hardware item
โ Correct Answer: Option A
(It is an output device)
๐ก Step-by-Step Explanation:
A Visual Display Unit (VDU) primary function is to display output data to the user.
๐ท๏ธ HEC USAT-CS โข Feb 2018 (Paper-I)
English Language Comprehension
Question 198 of 200
His father must (eliminate) fat from his diet because of his health.
(A)Cancel out
(B)Calm down
(C)Cut out
(D)Carry over
โ Correct Answer: Option C
(Cut out)
๐ก Step-by-Step Explanation:
"Cut out" means to stop doing, using, or eating something; to eliminate.
๐ท๏ธ HEC USAT-CS โข Feb 2018 (Official Paper)
English Language Comprehension
Question 199 of 200
Working in an office is definitely (unsuitable for him).
(A)In care of him
(B)Not his cup of tea
(C)On credit
(D)Cut out
โ Correct Answer: Option B
(Not his cup of tea)
๐ก Step-by-Step Explanation:
"Not someone's cup of tea" means something is not what they like or are suited for.
๐ท๏ธ HEC USAT-CS โข Sept 2018 (Paper-I)
English Language Comprehension
Question 200 of 200
She was very angry when she heard the news but now she has begun to (quiet down).
(A)Have the cheek to do something
(B)Calm down
(C)Cut corners
(D)Call it quits
โ Correct Answer: Option B
(Calm down)
๐ก Step-by-Step Explanation:
"Calm down" means to become less agitated, angry, or excited.
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USAT-CS (Undergraduate Studies Admission Test - Computer Science) stands for Undergraduate Studies Admission Test (USAT). It is conducted by Higher Education Commission (HEC) - Education Testing Council (ETC) for Undergraduate University Admissions across Public & Private Pakistani Universities.
The examination comprises 100 Marks (75 MCQs Part-1/2 + 25 Essay/Argumentative Writing) to be completed within 100 Minutes (Objective) + 40 Minutes (Essay). The test pattern consists of standardized objective multiple-choice questions mapped according to official syllabus weightages. There is no negative marking for incorrect answers.
The prescribed passing benchmark is 50% Passing Marks. However, final admission or interview shortlisting is determined based on competitive merit and aggregate rankings among all appearing candidates.
The official scorecard is valid for 1 Year for Undergraduate Admissions from the official result declaration date.
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No Negative Marking. Candidates are advised to attempt all questions systematically within the allocated 100 Minutes (Objective) + 40 Minutes (Essay).