What should come in place of the question mark (?) in the following number series?
7, 4, 5, 9, ?, 52.5, 160.5
1
30.5
2
20
3
29
4
46.5
5
23.5
What should come in place of the question mark (?) in the following number series?
7, 4, 5, 9, ?, 52.5, 160.5