Find the missing term in given series.
15, 8, 9, 15, 32, ?

Options

A. (a) 82.5
B. (b) 81.5
C. (c) 84.5
D. (d) 80.5

Answer

A

Explanation

`15 xx 0.5 + 0.5 = 8`
`8 xx 1 + 1 = 9`
`9 xx 1.5 + 1.5 = 15`
`15 xx 2 + 2 = 32`
`32 xx 2.5 + 2.5 = 82.5`