Numerical Reasoning Number Series and Sequences

Question 1

What is the next number in the sequence: 3, 7, 11, 15, 19, __?

Accepted Answer

23

Answer

The sequence increases by 4 each time; 19 + 4 = 23.

Question 2

What is the missing number: 2, 6, 18, 54, __, 486?

Accepted Answer

162

Answer

Each term is multiplied by 3; 54 × 3 = 162.

Question 3

Find the next term: 1, 4, 9, 16, 25, __?

Accepted Answer

36

Answer

These are perfect squares: 1²=1, 2²=4, 3²=9, 4²=16, 5²=25, 6²=36.

Question 4

What number comes next: 100, 92, 84, 76, 68, __?

Accepted Answer

60

Answer

The sequence decreases by 8 each time; 68 − 8 = 60.

Question 5

Identify the missing number: 1, 1, 2, 3, 5, 8, 13, __?

Accepted Answer

21

Answer

This is the Fibonacci sequence; each term equals the sum of the two preceding terms: 8+13 = 21.

Numerical Reasoning Practice Test