Character Puzzles - Verbal and Reasoning

Q1:

Which one will replace the question mark ?

A 3

B 5

C 4

D 6

ANS:B - 5

Explanation: (7 x 3) + 8 = 29 (4 x 3) + 7 = 19 (5 x ?) + 6 = 31 ? = 5.