Number Series Q.30
0. Find the missing number in the following series.
3, 4, 7, 7, 13, 13, 21, 22, 31, 34, ?
- Option : B
- Explanation : 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, ...
Hence, the missing term = 31 + 12 = 43.
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