85,78,65,40,56,x - Number Series - Series Completion - Verbal Reasoning Questions and Answers

In following number series, two terms have been put within brackets. Choose the appropriate option

85,78,65,40,56,x

A. 51

B. 30

C. 35

D. 23

Answer: B . 30

Justification:

(1) 85 , 78 , 65.

(2) 8*5 = 40 ,7*8 = 56 ,so 6*5 = 30