SarkariPYQ

SSC CPO 2019 PYQ — Question 159

SSC CPO Tier I - 13th December 2019 - Shift 1 • Reasoning • Q159

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Select the number that can replace the question mark (?) in the following series.
7, 11, 20, 36, 61, ?

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Correct answer: D

Explanation

The correct answer is option 4 i.e. 97.

The given series is 7, 11, 20, 36, 61, ?

The pattern is,

  • 7 + 22 = 11
  • 11 + 32 = 20
  • 20 + 42 = 36
  • 36 + 52 = 61
  • 61 + 62 = 97

Hence, the correct answer is option 4.