Series Test - Solved Examples

Answer - A

Explanation

In this series, 2 + 5 = 7, 7 + 5 = 12 and so on. Similarly each number is added with the digit 5 so the final answer will be 27.

Answer - B

Explanation

In this series, 5 - 3 = 2, 2 - 3 = -1. So each number is subtracted with the digit 3 hence the final answer is -10.

Answer - D

Explanation

In this series, 14 + 7 = 21, 28 + 7 = 35 we can see that each number is added with the digit 7 so the final number will be 35 + 7 = 42.

Answer - C

Explanation

In this series, 3 + 2 = 5, 5 + 3 = 8, 8 + 2 = 10, 10 + 3 = 13. Here each number is added with 2 & 3 so 20 will be added with 2 and the result will be 22.

Answer - A

Explanation

In this series, 2 + 1 = 3, 3 + 2 = 5, 5 + 3 = 8, 8 + 4 = 12 and so on. Hence 23 is the answer.

Answer - A

Explanation

The addition sequence is 10, 12, 14, 16. So 79 + 18 = 97 is the answer.

Answer - A

Explanation

Each number is added with 12 so 146 + 12 = 158.

Answer - A

Explanation

The addition sequence is +2, +4, +8, +16, +32. So 32 + 32 = 64.

Answer - A

Explanation

The addition of numbers is in the following sequence +5, +10, +15, +20. Finally 55 + 25 = 80.

Answer - B

Explanation

The number addition sequence is +3, +6, +9…. So 42 + 15 = 57.