Find the missing number?

A. 37

B. 61

C. 31

D. 39

Answer: Option A

Solution(By Examveda Team)

72
72 - 3 = 69
69 - 5 = 64
64 - 7 = 57
57 - 9 = 48.
48 - 11 = 37

So, Missing Element = 37.