Home / Topic / Permutations
Topic Permutations
Asked 3 times across 3 UPSC exams over 3 years (2022–2025), peaking in 2022.
Key insights
- Most tested in CAPF — 1 of 3 PYQs
- Most asked in 2022
- Recurs across 2 years (2022–2025)
How it travelled across exams
First appearance in each exam — the same idea, reframed.
CAPF 2022 → ESE 2022 → CISF 2025
How the concept evolved
Rising — more than half its appearances (3 of 3) are since 2016.
Sample questions
You've seen the pattern — here are a few of the actual PYQs.
CISF2025
The number of four-digit even numbers formed by the digits 0, 2, 4, 6, 8 without repetition is :
- A 12
- B 24
- C 48
- D 96 ✓
✓ Correct answer: (D)
Quantitative Aptitude › Number System
CAPF2022
There is a group of 5 people among which there is one couple. In how many ways can these 5 people be seated in a row having 5 chairs if the couple is to be seated next to each other?
- A 24
- B 48 ✓
- C 60
- D 120
✓ Correct answer: (B)
Current Affairs & Static GK › Miscellaneous GK
ESE2022
A library has two books each having three copies and three other books each having two copies. In how many ways can all these books be arranged in a shelf so that copies of the same book are not separated ?
- A 80
- B 100
- C 120 ✓
- D 140
✓ Correct answer: (C)
Quantitative Aptitude › Number System
Study how UPSC repeats — not just the papers
₹199 / 1 year · Founding Member
Full access unlocks the three things no PYQ PDF gives you:
① Cross-exam learning — see the same idea recur across CSE, CAPF, CDS and NDA.
② Topic evolution — how each idea is framed, year by year.
③ Question intelligence — every PYQ + answer, linked to related concepts and similar questions.
e.g. Round Table Conference: CDS 2017 → CSE 2017 → … → CAPF 2024
15 days free, no card required — then ₹199 for 1 year.
Start your 15-day free trial →