A certain sum amounts to ₹17,925 in 3 years and to ₹21,825 in 7 years at the same rate per cent per annum at simple interest. What will be the simple interest (in ₹) on a sum of ₹18,500 for $$4\frac{2}{5}$$ years at double the earlier rate?

A

7,625

B

8,245

C

10,582

D

9,876