What should come in place of the question mark '?' in the following number series?
64, 32, 31.5, 31.5, ?, 45.75
1
36.5
2
30.5
3
32.5
4
28.5
5
26.5
What should come in place of the question mark '?' in the following number series?
64, 32, 31.5, 31.5, ?, 45.75