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GATE 2025 PI question paper with official answer key
The complete GATE 2025 Production and Industrial Engineering (PI) paper: 65 questions for 100 marks, with the official answer to every question. Try each question first, then open its answer, or practise the whole paper free with a 3-hour timer and your score.
GATE 2025 PI paper at a glance
- Questions
- 65
- Total marks
- 100
- General Aptitude
- 10 questions · 15 marks
- PI subject
- 55 questions · 85 marks
- Question types
- 34 MCQ · 1 MSQ · 30 NAT
- Duration
- 3 hours
In GATE, each MCQ carries 1 or 2 marks; a wrong MCQ answer costs one-third of its marks (−1/3 for a 1-mark and −2/3 for a 2-mark question). MSQ (multiple select) and NAT (numerical answer) questions have no negative marking.
All 65 questions
Each question is shown exactly as in the official paper. Tap “Show answer” to check yourself.
Q.1 · General Aptitude · 1 mark · MCQ
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Answer: A
Q.2 · General Aptitude · 1 mark · MCQ
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Answer: B
Q.3 · General Aptitude · 1 mark · MCQ
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Answer: C
Q.4 · General Aptitude · 1 mark · MCQ
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Answer: A
Q.5 · General Aptitude · 1 mark · MCQ
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Answer: C
Q.6 · General Aptitude · 2 marks · MCQ
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Answer: B
Q.7 · General Aptitude · 2 marks · MCQ
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Answer: B
Q.8 · General Aptitude · 2 marks · MCQ
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Answer: A
Q.9 · General Aptitude · 2 marks · MCQ
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Answer: C
Q.10 · General Aptitude · 2 marks · MCQ
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Answer: A
Q.11 · PI · 1 mark · MCQ
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Answer: A
Q.12 · PI · 1 mark · MCQ
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Answer: A
Q.13 · PI · 1 mark · MCQ
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Answer: A
Q.14 · PI · 1 mark · MCQ
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Answer: B
Q.15 · PI · 1 mark · MCQ
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Answer: B
Q.16 · PI · 1 mark · MCQ
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Answer: D
Q.17 · PI · 1 mark · MCQ
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Answer: C
Q.18 · PI · 1 mark · MCQ
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Answer: A
Q.19 · PI · 1 mark · MCQ
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Answer: B
Q.20 · PI · 1 mark · MCQ
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Answer: C
Q.21 · PI · 1 mark · MCQ
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Answer: B
Q.22 · PI · 1 mark · MCQ
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Answer: A
Q.23 · PI · 1 mark · MCQ
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Answer: A
Q.24 · PI · 1 mark · MCQ
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Answer: B
Q.25 · PI · 1 mark · MCQ
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Answer: A
Q.26 · PI · 1 mark · MCQ
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Answer: A
Q.27 · PI · 1 mark · MCQ
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Answer: A
Q.28 · PI · 1 mark · MCQ
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Answer: A
Q.29 · PI · 1 mark · NAT
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Answer: 199 to 201
Q.30 · PI · 1 mark · NAT
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Answer: 0.5
Q.31 · PI · 1 mark · NAT
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Answer: 399 to 401
Q.32 · PI · 1 mark · NAT
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Answer: 9995 to 10005
Q.33 · PI · 1 mark · NAT
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Answer: 199 to 201
Q.34 · PI · 1 mark · NAT
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Answer: 2490 to 2510
Q.35 · PI · 1 mark · NAT
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Answer: 0.01
Q.36 · PI · 2 marks · MCQ
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Answer: A
Q.37 · PI · 2 marks · MCQ
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Answer: A
Q.38 · PI · 2 marks · MCQ
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Answer: A
Q.39 · PI · 2 marks · MCQ
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Answer: C
Q.40 · PI · 2 marks · MCQ
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Answer: A
Q.41 · PI · 2 marks · MCQ
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Answer: B
Q.42 · PI · 2 marks · MSQ
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Answer: A, B, C
Q.43 · PI · 2 marks · NAT
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Answer: 2
Q.44 · PI · 2 marks · NAT
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Answer: 2
Q.45 · PI · 2 marks · NAT
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Answer: 47.1 to 49.5
Q.46 · PI · 2 marks · NAT
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Answer: 0.08
Q.47 · PI · 2 marks · NAT
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Answer: 1.65 to 1.69
Q.48 · PI · 2 marks · NAT
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Answer: 315 to 325
Q.49 · PI · 2 marks · NAT
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Answer: 5
Q.50 · PI · 2 marks · NAT
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Answer: 0.19 to 0.21
Q.51 · PI · 2 marks · NAT
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Answer: 0.72 to 0.76
Q.52 · PI · 2 marks · NAT
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Answer: 0.49 to 0.53
Q.53 · PI · 2 marks · NAT
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Answer: 81.5 to 82.5
Q.54 · PI · 2 marks · NAT
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Answer: 70
Q.55 · PI · 2 marks · NAT
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Answer: 9.8 to 10.2
Q.56 · PI · 2 marks · NAT
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Answer: 185 to 188
Q.57 · PI · 2 marks · NAT
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Answer: 4000
Q.58 · PI · 2 marks · NAT
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Answer: 30 to 33
Q.59 · PI · 2 marks · NAT
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Answer: 95 to 99
Q.60 · PI · 2 marks · NAT
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Answer: 1995 to 2005
Q.61 · PI · 2 marks · NAT
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Answer: 20.8
Q.62 · PI · 2 marks · NAT
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Answer: 10.61 to 10.65
Q.63 · PI · 2 marks · NAT
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Answer: 4
Q.64 · PI · 2 marks · NAT
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Answer: 12.3 to 12.7
Q.65 · PI · 2 marks · NAT
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Answer: 27.1 to 27.5
GATE 2025 PI official answer key
From the official GATE answer key ↗. Numerical answers are accepted anywhere in the range shown.
| Q. | Section | Type | Marks | Answer |
|---|---|---|---|---|
| 1 | GA | MCQ | 1 | A |
| 2 | GA | MCQ | 1 | B |
| 3 | GA | MCQ | 1 | C |
| 4 | GA | MCQ | 1 | A |
| 5 | GA | MCQ | 1 | C |
| 6 | GA | MCQ | 2 | B |
| 7 | GA | MCQ | 2 | B |
| 8 | GA | MCQ | 2 | A |
| 9 | GA | MCQ | 2 | C |
| 10 | GA | MCQ | 2 | A |
| 11 | PI | MCQ | 1 | A |
| 12 | PI | MCQ | 1 | A |
| 13 | PI | MCQ | 1 | A |
| 14 | PI | MCQ | 1 | B |
| 15 | PI | MCQ | 1 | B |
| 16 | PI | MCQ | 1 | D |
| 17 | PI | MCQ | 1 | C |
| 18 | PI | MCQ | 1 | A |
| 19 | PI | MCQ | 1 | B |
| 20 | PI | MCQ | 1 | C |
| 21 | PI | MCQ | 1 | B |
| 22 | PI | MCQ | 1 | A |
| 23 | PI | MCQ | 1 | A |
| 24 | PI | MCQ | 1 | B |
| 25 | PI | MCQ | 1 | A |
| 26 | PI | MCQ | 1 | A |
| 27 | PI | MCQ | 1 | A |
| 28 | PI | MCQ | 1 | A |
| 29 | PI | NAT | 1 | 199 to 201 |
| 30 | PI | NAT | 1 | 0.5 |
| 31 | PI | NAT | 1 | 399 to 401 |
| 32 | PI | NAT | 1 | 9995 to 10005 |
| 33 | PI | NAT | 1 | 199 to 201 |
| 34 | PI | NAT | 1 | 2490 to 2510 |
| 35 | PI | NAT | 1 | 0.01 |
| 36 | PI | MCQ | 2 | A |
| 37 | PI | MCQ | 2 | A |
| 38 | PI | MCQ | 2 | A |
| 39 | PI | MCQ | 2 | C |
| 40 | PI | MCQ | 2 | A |
| 41 | PI | MCQ | 2 | B |
| 42 | PI | MSQ | 2 | A, B, C |
| 43 | PI | NAT | 2 | 2 |
| 44 | PI | NAT | 2 | 2 |
| 45 | PI | NAT | 2 | 47.1 to 49.5 |
| 46 | PI | NAT | 2 | 0.08 |
| 47 | PI | NAT | 2 | 1.65 to 1.69 |
| 48 | PI | NAT | 2 | 315 to 325 |
| 49 | PI | NAT | 2 | 5 |
| 50 | PI | NAT | 2 | 0.19 to 0.21 |
| 51 | PI | NAT | 2 | 0.72 to 0.76 |
| 52 | PI | NAT | 2 | 0.49 to 0.53 |
| 53 | PI | NAT | 2 | 81.5 to 82.5 |
| 54 | PI | NAT | 2 | 70 |
| 55 | PI | NAT | 2 | 9.8 to 10.2 |
| 56 | PI | NAT | 2 | 185 to 188 |
| 57 | PI | NAT | 2 | 4000 |
| 58 | PI | NAT | 2 | 30 to 33 |
| 59 | PI | NAT | 2 | 95 to 99 |
| 60 | PI | NAT | 2 | 1995 to 2005 |
| 61 | PI | NAT | 2 | 20.8 |
| 62 | PI | NAT | 2 | 10.61 to 10.65 |
| 63 | PI | NAT | 2 | 4 |
| 64 | PI | NAT | 2 | 12.3 to 12.7 |
| 65 | PI | NAT | 2 | 27.1 to 27.5 |
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