Character Puzzles - Verbal and Reasoning

Q1:

Which one will replace the question mark ?

A 18

B 12

C 9

D 6

ANS:C - 9

Explanation: (12 + 18 + 30)/10 = 6 (16 + 24 + 40)/10 = 8 Similarly, (45 + 18 + 27)/10 = 9.