Sequences & Series in IOQM: previous year question analysis
Sequences & Series has appeared 16 times in IOQM between 2013 and 2025, making it the 9th most-asked of 14 chapters and about 4.5% of the bank. Over the last 5 years it has averaged 2.6 questions per year.
Total PYQs
16
Years covered
2013–2025
Weightage rank
#9 of 14
Share of bank
4.5%
How many Sequences & Series questions appeared each year
| Year | Questions | Relative volume |
|---|---|---|
| 2013 | 1 | |
| 2014 | 1 | |
| 2016 | 1 | |
| 2017 | 4 | |
| 2019 | 3 | |
| 2021 | 3 | |
| 2023 | 1 | |
| 2025 | 2 |
Which Sequences & Series sub-topics are asked most
Every question in this chapter is tagged to a sub-topic, so you can see exactly where the marks sit before you revise.
- telescoping sums with surds1 questions
- algebraic manipulation of a long sum1 questions
- estimating a finite sum of $1/\sqrt{n}$ by telescoping bounds1 questions
- geometric progression with equal powers1 questions
- telescoping sum of a rational term1 questions
- geometric progression with integer and fractional parts1 questions
- integer geometric progression with a rational ratio1 questions
- product recurrence, prime factorisation of a term1 questions
- characterising good numbers, divisibility of partial sums1 questions
- estimating a sum by telescoping square-root bounds1 questions
Question formats used in Sequences & Series
- Numerical / integer answer16
How Sequences & Series compares with nearby chapters
- #7Digits & Base Systems27
- #8Coordinate & Trigonometric Geometry16
- #9Sequences & Series16
- #10Inequalities12
- #11Modular Arithmetic9
Counts are computed from AcadXL’s own IOQM question bank, tagged chapter- and sub-topic-wise and checked against official answer keys. Sign in to attempt the 16 Sequences & Series questions with solutions.