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Find the missing term: 5, 6, 9, 15, ?, 40

A. 21

B. 25

C. 27

D. 33

Answer: Option B

Solution(By Examveda Team)

The pattern is + 1, + 3, + 6, ............i.e., + 1, + (1 + 2) + (1 + 2 + 3)...............
So, missing term = 15 + (1 + 2 +3 +4) = 25

This Question Belongs to Competitive Reasoning >> Number Series Completion

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