Civil Service Numerical Reasoning Test Number Sequences and Patterns 3

Question 1

What is the next number: 10, 13, 16, 19, 22, __?

Accepted Answer

25

Answer

The sequence increases by 3 each time. 22 + 3 = 25.

Question 2

Find the missing number: 81, 27, 9, __, 1?

Accepted Answer

3

Answer

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, __?

Accepted Answer

21

Answer

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?

Accepted Answer

28

Answer

Each term is doubled: 7, 14, 28, 56, 112.

Question 5

What is the next term: 100, 50, 25, 12.5, __?

Accepted Answer

6.25

Answer

Each term is halved: 12.5 ÷ 2 = 6.25.

Civil Service Numerical Reasoning Practice Test