Question

What number will come in place of question mark in this series?

100, 115, ?, 150, 170, 185

A. 135

B. 130

C. 140

D. 145

1. A
2. D
3. B
4. C

Answer 1

Correct Answer - Option 1 : A

Given,

100, 115, ?, 150, 170, 185

The pattern followed here is,

100 + 15 = 115

115 + 20 = 135

135 + 15 = 150

150 + 20 = 170

170 + 15 = 185

∴ The number 135 will come in place of question mark in the series.

Hence, the correct answer is A.