NinetynineCAT Set Theory questions 9 since 2017
Across the 24 CAT papers from 2017 to 2025, Set Theory was asked 9 times, in 7 of the 24 papers. CAT asks about 0.4 Set Theory questions per paper on average; in 2022–2025 it was 0.3 per paper, against 0.6 in the four years before (steady). Below is how often it appeared each year, the ideas CAT keeps reusing, and every question with its answer.
Key facts
- Across the 24 CAT papers from 2017 to 2025, Set Theory was asked 9 times, in 7 of the 24 papers.
- Set Theory is the 16th most-asked of the 16 CAT QA topics, with 1.5% of all QA questions since 2017.
- CAT asks about 0.4 Set Theory questions per paper on average; in 2022–2025 it was 0.3 per paper, against 0.6 in the four years before (steady).
- The heaviest year for Set Theory was CAT 2018, with 4 questions across 2 slots.
Counted from all 24 CAT papers 2017–2025 (1,830 questions), one topic tag per question. How we tag.
How many Set Theory questions come in CAT each year?
| Year | Questions | Slots that year | Per slot |
|---|---|---|---|
| CAT 2017 | 0 | 2 | 0.0 |
| CAT 2018 | 4 | 2 | 2.0 |
| CAT 2019 | 1 | 2 | 0.5 |
| CAT 2020 | 1 | 3 | 0.3 |
| CAT 2021 | 0 | 3 | 0.0 |
| CAT 2022 | 1 | 3 | 0.3 |
| CAT 2023 | 0 | 3 | 0.0 |
| CAT 2024 | 1 | 3 | 0.3 |
| CAT 2025 | 1 | 3 | 0.3 |
Set Theory ideas CAT has repeated
- Three-set Venn diagrams: maximise or minimise a region 4 questions, 2020–2025
All Set Theory questions, newest first
CAT 2025
- CAT 2025 Slot 3 · QA Q14 In a class of 150 students, 75 students chose physics, 111…
CAT 2024
- CAT 2024 Slot 3 · QA Q5 In a group of 250 students, the percentage of girls was at…
CAT 2022
- CAT 2022 Slot 1 · QA Q17 In a class of 100 students, 73 like coffee, 80 like tea and…
CAT 2020
- CAT 2020 Slot 2 · QA Q13 Students in a college have to choose at least two subjects… answer only
CAT 2019
- CAT 2019 Slot 1 · QA Q4 A club has 256 members of whom 144 can play football, 123… answer only
CAT 2018
- CAT 2018 Slot 2 · QA Q31 For two sets A and B, let AΔB denote the set of elements… answer only
- CAT 2018 Slot 2 · QA Q32 If A = 6^2n - 35n - 1: n = 1,2,3,... and B = 35(n-1) : n =… answer only
- CAT 2018 Slot 1 · QA Q22 Each of 74 students in a class studies at least one of the… answer only
- CAT 2018 Slot 1 · QA Q32 If among 200 students, 105 like pizza and 134 like burger… answer only
More QA: all Quantitative Ability topics · CAT topic weightage, every section