Identify the number that does NOT belong in the given series. 2, 6, 6, 10, 8, 12, 12, 15, 14, 18

Options

A. (a) 18
B. (b) 12
C. (c) 15
D. (d) 8

Answer

C

Explanation

It is an alternative series.
`(2,6,8,12,14)` and `(6,10,12,15,18)`.
every series is added by `(+4,+2,+4,+2)`.
So, it should be `(6,10,12,16,18)`. So, 15 is not belong to series.
Option C is correct.