What should come in place of the question mark '?' in the following number series?
2, 1.5, 3.5, 13.5, ?, 1735.51
110.5
2
108.5
3
106.5
4
104.5
5
112.5
What should come in place of the question mark '?' in the following number series?
2, 1.5, 3.5, 13.5, ?, 1735.5