5,6,9,15,?,40 a)25 b)33 c)27 d)21

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Manikandasubbiah
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65 Answers

Your Answer

Answer: B . 25
Justification:
The pattern is + 1, + 3, + 6,... i.e. + 1, + (1 + 2), + (1 + 2 + 3),...
.'. Missing number = 15 + (1 + 2 + 3 + 4) = 25.

Dharshita
10 Oct
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5,6,9,15,?,40 a)25 b)33 c)27 d)21