question_answer

80, 63, 72, 72, 64, 81, 56, ?                                             

A) 96                               

B) 98                          

C) 89                               

D) 90

Correct Answer: D

Solution :

There are two alternate series: Series 1: 80,72,64,56 (following - 8 pattern) Series 1: 63,72,81,90 (following + 9 pattern)