Verbal Reasoning →Series Completion → Number Series→Question : 21

Find the missing term in the following series:
5, 6, 9, 15, ?, 40
[A]21
[B]25
[C]27
[D]33

25
In the above question, the pattern is +1, +3, +6, ………………i.e. +1, +(1, +2), + (1+2+3),……. So, missing term = 15+ (1+2+3+4) = 25

Comments