What should come in place of the question mark '?' in the following number series?
165, 315, ?, 765, 1065, 1415, 1815
1
505
2
510
3
515
4
525
5
560
What should come in place of the question mark '?' in the following number series?
165, 315, ?, 765, 1065, 1415, 1815