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CDS Elementary Mathematics PYQs (previous year questions), topic wise: we tagged 2200 Elementary Mathematics questions from 66 official CDS papers (2016–2026). The topics asked most are Algebra (428), Mensuration (360), Geometry (336). Open any topic for every question it has had with the official answer.
Elementary Mathematics topics ranked by questions
- Algebra PYQs: 428 questions; most asked: Quadratic Equations
- Mensuration PYQs: 360 questions; most asked: Circle
- Geometry PYQs: 336 questions; most asked: Triangles
- Number System and Simplification PYQs: 306 questions; most asked: HCF and LCM
- Trigonometry PYQs: 284 questions; most asked: Trigonometric Identities
- Statistics PYQs: 185 questions; most asked: Mean
- Percentage, Ratio, Profit and Interest PYQs: 168 questions; most asked: Percentage
- Time, Speed and Work PYQs: 133 questions; most asked: Trains
Elementary Mathematics questions by year
| Topic | 2026 | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | All questions |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Number System and Simplification | 21 | 34 | 44 | 28 | 17 | 22 | 29 | 34 | 22 | 23 | 32 | 306 |
| Percentage, Ratio, Profit and Interest | 16 | 13 | 19 | 13 | 5 | 12 | 17 | 18 | 21 | 21 | 13 | 168 |
| Time, Speed and Work | 10 | 4 | 13 | 11 | 13 | 11 | 10 | 11 | 19 | 15 | 16 | 133 |
| Algebra | 39 | 34 | 24 | 54 | 48 | 45 | 31 | 37 | 42 | 37 | 37 | 428 |
| Trigonometry | 30 | 32 | 25 | 27 | 29 | 30 | 30 | 16 | 20 | 22 | 23 | 284 |
| Geometry | 48 | 31 | 28 | 23 | 31 | 25 | 27 | 27 | 29 | 35 | 32 | 336 |
| Mensuration | 23 | 27 | 34 | 32 | 38 | 36 | 40 | 37 | 37 | 25 | 31 | 360 |
| Statistics | 13 | 25 | 13 | 12 | 19 | 19 | 16 | 20 | 10 | 22 | 16 | 185 |
Most-asked Elementary Mathematics concepts
| Concept | Topic | Questions | Papers |
|---|---|---|---|
| Trigonometric Identities | Trigonometry | 120 | 22 |
| Triangles | Geometry | 104 | 22 |
| Trigonometric Ratios | Trigonometry | 68 | 22 |
| Quadratic Equations | Algebra | 66 | 22 |
| Algebraic Identities | Algebra | 57 | 22 |
| Circles | Geometry | 83 | 21 |
| Heights and Distances | Trigonometry | 42 | 20 |
| HCF and LCM | Number System and Simplification | 39 | 19 |
| Polynomials | Algebra | 35 | 18 |
| Trains | Time, Speed and Work | 24 | 18 |
| Time and Work | Time, Speed and Work | 41 | 17 |
| Percentage | Percentage, Ratio, Profit and Interest | 28 | 17 |
| Compound Interest | Percentage, Ratio, Profit and Interest | 21 | 17 |
| Mean | Statistics | 50 | 16 |
| Remainders | Number System and Simplification | 35 | 16 |
How to use CDS Elementary Mathematics PYQs
- Start with the topics at the top of the ranking. They carry the most questions.
- For each topic, solve its PYQs year by year from the official PDFs, then check the answers.
- Log misses by concept. When a concept repeats in your log, go back to that topic’s concept table.
- Finish with full CDS papers from the year pages to practise timing.
Other CDS subjects
FAQ
Which Elementary Mathematics topics are most important for CDS?
By questions in the official papers we tagged (2016–2026): Algebra (428), Mensuration (360), Geometry (336). The table on this page ranks every Elementary Mathematics topic.
How many Elementary Mathematics questions are in these CDS PYQs?
2200 Elementary Mathematics questions across 66 official CDS papers from 2016–2026, spread over 8 topics.
Are these CDS Elementary Mathematics PYQs official?
Yes. Every question is from an official CDS paper hosted on our year pages. Summaries are ours; the full question is in the official PDF linked beside it.