Civil Service Numerical Reasoning Test Number Sequences and Patterns 3 — Questions and Answers
Question 1: What is the next number: 10, 13, 16, 19, 22, __?
- 25 (Correct answer)
- 24
- 26
- 23
Correct answer: 25
The sequence increases by 3 each time. 22 + 3 = 25.
Question 2: Find the missing number: 81, 27, 9, __, 1?
- 3 (Correct answer)
- 6
- 4
- 2
Correct answer: 3
Each term is divided by 3: 81 ÷ 3 = 27, 27 ÷ 3 = 9, 9 ÷ 3 = 3, 3 ÷ 3 = 1.
Question 3: What comes next: 0, 1, 3, 6, 10, 15, __?
- 21 (Correct answer)
- 18
- 20
- 24
Correct answer: 21
These are triangular numbers. Differences: +1, +2, +3, +4, +5, +6. Next = 15 + 6 = 21.
Question 4: What is the missing number: 7, 14, __, 56, 112?
- 28 (Correct answer)
- 21
- 35
- 42
Correct answer: 28
Each term is doubled: 7, 14, 28, 56, 112.
Question 5: What is the next term: 100, 50, 25, 12.5, __?
- 6.25 (Correct answer)
- 5
- 10
- 7.5
Correct answer: 6.25
Each term is halved: 12.5 ÷ 2 = 6.25.
Question 6: Find the missing term: 3, 6, 11, 18, 27, __?
- 38 (Correct answer)
- 36
- 40
- 34
Correct answer: 38
Differences: +3, +5, +7, +9, +11. Next = 27 + 11 = 38.
Civil Service Numerical Reasoning Test Number Sequences and Patterns 3
What is the next number: 10, 13, 16, 19, 22, __?