Short Summary
GATE 2021 Computer Science and Information Technology Engineering Section-II Previous Year Paper
General Aptitude (GA)
Q.1 – Q.5 Multiple Choice Question (MCQ), carry ONE mark each (for each wrong answer: – 1/3).
 Q.1 |
Gauri said that she can play the keyboard_________her sister. |
(A) |
as well as |
(B) |
as better as |
(C) |
as nicest as |
(D) |
as worse as |
| Q.2 |
A transparent square sheet shown above is folded along the dotted line. The folded sheet will look like .  |
Q.4 If (x-1/2)2 – (x-3/2)2=x+2 then the value of
(A) 2
(B) 4
(C) 6
(D) 8
| Q.5 |
Which one of the following options maintains a similar logical relation in the above? |
(A) |
Vegetables |
(B) |
Sharp |
(C) |
Cut |
(D) |
Blunt |
Q. 6 – Q. 10 Multiple Choice Question (MCQ), carry TWO marks each (for each wrong answer: – 2/3).
| Q.6 |
Listening to music during exercise improves exercise performance and reduces discomfort. Scientists researched whether listening to music while studying can help students learn better and the results were inconclusive. Students who needed external stimulation for studying fared worse while students who did not need any external stimulation benefited from music. Which one of the following statements is the CORRECT inference of the above passage? |
(A) |
Listening to music has no effect on learning and a positive effect on physical exercise. |
(B) |
Listening to music has a clear positive effect both on physical exercise and on learning. |
(C) |
Listening to music has a clear positive effect on physical exercise. Music has a positive effect on learning only in some students. |
(D) |
Listening to music has a clear positive effect on learning in all students. Music has a positive effect only in some students who exercise. |
| Q.7 |
 A jigsaw puzzle has 2 pieces. One of the pieces is shown above. Which one of the given options for the missing piece when assembled will form a rectangle? The piece can be moved, rotated or flipped to assemble with the above piece.  |
| Q.8 |
The number of students in three classes is in the ratio 3:13:6. If 18 students are added to each class, the ratio changes to 15:35:21.The total number of students in all the three classes in the beginning was: |
(A) |
22 |
(B) |
66 |
(C) |
88 |
(D) |
110 |
| Q.9 |
 The number of units of a product sold in three different years and the respective net profits are presented in the figure above. The cost/unit in Year 3 was ` 1, which was half the cost/unit in Year 2. The cost/unit in Year 3 was one-third of the cost/unit in Year 1. Taxes were paid on the selling price at 10%, 13% and 15% respectively for the three years. Net profit is calculated as the difference between the selling price and the sum of cost and taxes paid in that year. The ratio of the selling price in Year 2 to the selling price in Year 3 is . |
A) |
4:3 |
(B) |
1:1 |
(C) |
3:4 |
(D) |
1:2 |
| Q.10 |
Six students P, Q, R, S, T and U, with distinct heights, compare their heights and make the following observations. Observation II: Q is the shortest of all. Observation III: U is taller than only one student. Observation IV: T is taller than S but is not the tallest. The number of students that are taller than R is the same as the number of students shorter than_________. |
(A) |
T |
(B) |
R |
(C) |
S |
(D) |
P |
Computer Science and Information Technology (CS, Set-2)
Q.1 – Q.10 Multiple Choice Question (MCQ), carry ONE mark each (for each wrong answer: – 1/3).
Q.11 – Q.15 Multiple Select Question (MSQ), carry ONE mark each (no negative marks).
Q.16 – Q.25 Numerical Answer Type (NAT), carry ONE mark each (no negative marks).
Q.26 – Q.39 Multiple Choice Question (MCQ), carry TWO mark each (for each wrong answer: – 2/3).
Q.40 – Q.47 Multiple Select Question (MSQ), carry TWO mark each (no negative marks).
Q.48 – Q.55 Numerical Answer Type (NAT), carry TWO mark each (no negative marks).
Answer Key
| Q.No. | Ans | Q.No. | Ans | Q.No. | Ans | Q.No. | Ans | Q.No. | Ans | Q.No. | Ans | Q.No. | Ans |
| 1 | A | 1 | C | 11 | B; C | 21 | 698 to 698 | 31 | B | 41 | B; C; D | 51 | 8 to 8 |
| 2 | B | 2 | C | 12 | B; C; D | 22 | 15.00 to 16.00 | 32 | B | 42 | A; D | 52 | 6 to 6 |
| 3 | B | 3 | C | 13 | D | 23 | 15 to 15 | 33 | A | 43 | A; B; C | 53 | 1.87 to 1.88 |
| 4 | B | 4 | C | 14 | A; C; D | 24 | 4 to 4 | 34 | C | 44 | A; D | 54 | 130 to 140 |
| 5 | C | 5 | A | 15 | B; D | 25 | 19 to 19 | 35 | D | 45 | B; C | 55 | 929 to 929 |
| 6 | C | 6 | D | 16 | 1 to 1 | 26 | B | 36 | C | 46 | A; B | ||
| 7 | A | 7 | C | 17 | 256 to 256 | 27 | A | 37 | B | 47 | A; B; C | ||
| 8 | C | 8 | B | 18 | 3 to 3 | 28 | B | 38 | A | 48 | 4108 to 4108 | ||
| 9 | A | 9 | C | 19 | 2 to 2 | 29 | D | 39 | C | 49 | 60 to 60 | ||
| 10 | C | 10 | C | 20 | 80000 to 80000 | 30 | D | 40 | A; C; D | 50 | 59049 to 59049 |
