Question

What should come in place of the question mark (?) in the given series? 83 95 108 122 137 ?

• A. 148
• B. 153
• C. 166
• D. 172

Answer 1

Answer:

B. 153

Series:
83, 95, 108, 122, 137, ?

Find the differences between consecutive terms:

• 95 − 83 = 12

• 108 − 95 = 13

• 122 − 108 = 14

• 137 − 122 = 15

The differences are increasing by 1 each time.

So the next difference = 16

Next term = 137 + 16 = 153