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

2,6,12,20,30,42,56,x

Option:
A. 60
B. 64
C. 70
D. 72
Answer: D . 72

Justification:

The sequence is 1 * 2 , 2 * 3, 3 * 4, 4 * 5.

Next number = 8 * 9 = 72

Next