Question

Please explain the logic behind this series.
10, 15, 15, 12.5, 9.375, 6.5825

Answer 1

Number 6.5625 comes instead of 6.5825.

10 * 3/2 = 15

15 * 4/4 = 15

15 * 5/6 = 12.5

12.5 * 6/8 = 9.375

9.375 * 7/10 = 6.5625

6.5625 * 8/12 = 4.375.

So, the next number is 4.375.