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3, 4, 7, 7, 13, 13, 21, 22, 31, 34, ?

A. 42

B. 43

C. 51

D. 52

Answer: Option B

Solution(By Examveda Team)

The given sequence is a combination of two series :
I. 3, 7, 13, 21, 31, ? and II. 4, 7, 13, 22, 34
The pattern in I is + 4, + 6, + 8, + 10,.....
The pattern in II is + 3, + 6, + 9, + 12,.....
So, missing term = 31 + 12 = 43.

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Comments ( 2 )

  1. Chhotu Kumar
    Chhotu Kumar :
    1 year ago

    Question is wrong according to your answer.

  2. A Dreamer
    A Dreamer :
    1 year ago

    wrong answer is 49 because the missing term is after 34 not 31 ..../....
    34+15=49 pls correct your mistake

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