Find the missing term in the following series.

1)

6, 12,21, ?, 48


A) 33

B) 38

C) 40

D) 45

Answer:

Option A

Explanation:

The pattern is + 6, + 9, + 12, + 15, ..... So, missing term = 21 + 12 = 33.

Hence the answer is (a).