Find the missing number?

A. 25

B. 21

C. 19

D. 29

Answer: Option D

Solution(By Examveda Team)

In each diagram, add up the 4 outer numbers then add 2 for the left hand group, 4 for the next, then 6, then 8, and put this result in the central circle. So,

Missing Number = 7 + 3 + 5 + 6 + 8 = 29.