In the following questions, a series is given with one term missing. Choose the correct alternative form the given ones that will complete the series.
4, 3, 2.5, 2.25, ?

Options

A. 1
B. `1.125`
C. 2
D. `2.125`

Answer

D

Explanation

The pattern followed here is,
4 - 1 = 3,
3-0.5 = 2.5,
2.5 - 0.25 = 2.25
2.25 - 0.125 = 2.125.
Hence , option D is the correct answer .