A certain sum amounts to ₹8,330 in $$2\frac{1}{2}$$ years and rto ₹10,166 in $$5\frac{1}{2}$$ years at a certain rate per cent per annum, both at simple interest. What will be the simple interest (in ₹) on the same sum in 4 years ar double the rate?

A

4,896

B

4,860

C

4,268

D

3,264