3, 4, 7, 7, 13, 13, 21, 22, 31, 44, - Number Series - Series Completion - Verbal Reasoning questi

In following question, a number series is given with one term missing. Choose the correct alternative that will same pattern and fill in the blank spaces. - 3, 4, 7, 7, 13, 13, 21, 22, 31, 44,

A. 42

B. 43

C. 51

D. 52

E. None of the above

Answer: B. 43

The given sequence is a combination of two series :
I. Odd numbered terms i.e. 3, 7, 13, 21, 31, (....)
II. Even numbered terms i.e. 4, 7, 13, 22, 44.
The pattern in I is + 4, + 6, + 8, + 10,....
The pattern in II is + 3, + 6, + 9, + 12,.....
.'. Missing term = 31 + 12 = 43.

Posted in: Number Series - Series Completion - Verbal Reasoning