All 36 Permutation, Combination & Probability Previous Year Questions for UPSC CSAT, with answers and explanations. Click any question for the full solution.
Across 2015–2024, UPSC CSAT has asked 36 Permutation, Combination & Probability questions — an average of 3.6 per year. The heaviest year was 2023 with 7 questions; the lightest was 2024 with 1. Use the year-wise split below to see where the paper has been concentrating.
| Year | Questions | Share |
|---|---|---|
| 2024 | 1 | 3% |
| 2023 | 7 | 19% |
| 2022 | 6 | 17% |
| 2021 | 3 | 8% |
| 2020 | 2 | 6% |
| 2019 | 3 | 8% |
| 2018 | 4 | 11% |
| 2017 | 3 | 8% |
| 2016 | 3 | 8% |
| 2015 | 4 | 11% |
Revise every question the smart way — spaced repetition, timers and analytics in the ReviseUPSC app.
Download the App