What should come in place of the question mark '?' in the following number series?
10, 11.44, ?, 30.16, 53.20, 89.20,141.04
1
18
2
17.20
3
16.2
4
15.3
5
19.2
What should come in place of the question mark '?' in the following number series?
10, 11.44, ?, 30.16, 53.20, 89.20,141.04