Find the missing number?

A. 2

B. 7

C. 4

D. 9

Answer: Option B

Solution(By Examveda Team)

Add the number at each corner of the diagram to its 2 adjacent numbers. The total is always 15.

4 + 4 + 7 = 15
5 + 4 + 6 = 15
6 + 7 + 2 = 15
So,

6 + 2 + x = 15
x = 15 - 8 = 7.