Character Puzzles - Verbal and Reasoning

Q1:

Which one will replace the question mark ?

A 660

B 670

C 610

D 690

ANS:D - 690

Explanation: (1)2 + (5)2 + (4)2 + (3)2 = 51 x 10 = 510 and (3)2 + (4)2 + (6)2 + (2)2 = 65 x 10 = 650 Similarly (0)2 + (1)2 + (2)2 + (8)2 = 69 x 10 = 690.