8, 5, 6, 15, 52.5

Direction: Find out the wrong number in the following number series.

Q. 8, 5, 6, 15, 52.5

A.15

B.52.5

C.5

D.8

E. None of these

Sol:

8 * 0.5 = 4

4 * 1.5 = 6

6 * 2.5 = 15

15 * 3.5 = 52.5