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Verbal Reasoning · Q143

Number Series Completion

Competitive Exams · Verbal Reasoning · question 143

Q143

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

A.
21
B.
25
Answer
C.
27
D.
33

Answer: Option B

Solution

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