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What should come in place of the question mark (?) in the given series? 34 51 85 102 136 ?

A153

B146

C157

D142

Answer:

A. 153

Read Explanation:

Series:

34, 51, 85, 102, 136, ?

Observe the pattern:

  • 34 + 17 = 51

  • 51 + 34 = 85

  • 85 + 17 = 102

  • 102 + 34 = 136

So the additions alternate between +17, +34.

Next term:

136 + 17 = 153

Answer: 153


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