question_answer

2, 4, 4, 8, 16, 16, 256, ?

A) 64                               

B) 36

C) 180                             

D) 32  

Correct Answer: D

Solution :

There are two alternate series: Series 1: 2, 4, 16, 256, (next number is the square of previous number) Series II: 4, 8, 16, 32, (number is multiplied by 2 to get the next number)