What should come in place of question mark ‘?’ in the following number series?
900, 18, 180, 36, 45, 108, ?, 432
1
7
2
25
3
9
4
20
5
15
What should come in place of question mark ‘?’ in the following number series?
900, 18, 180, 36, 45, 108, ?, 432
7
25
9
20
15