1.5, 2.3, 3.1, 3.9, ... What number should come next?

1.5, 2.3, 3.1, 3.9, ... What number should come next?

A 4.2

B 4.4

C 4.7

D 5.1

Solution

Correct Answer: Option C

In this simple addition series, each number increases by 0.8.