Find the missing term in the following series.

1)

2, 5, 9, 19, 37, ?


A) 75

B) 76

C) 73

D) 78

Answer:

Option A

Explanation:

Clearly, we have : 2 x 2+ 1 =5, 5 x 2 - 1 = 9,

9 x 2 + 1= 19, 19 x 2 -1  =37. .....

So, missing term = 37 x 2 + 1 = 75

Hence, the answer is (a)