If the simple interest on a certain sum for 15 months at 
per annum exceeds the simple interest on the same sum for 8 months at 
per annum by ₹ 32.50, then the sum is:
A₹ 3000
B₹ 3060
C₹ 3120
D₹ 3250
If the simple interest on a certain sum for 15 months at per annum exceeds the simple interest on the same sum for 8 months at per annum by ₹ 32.50, then the sum is:
A₹ 3000
B₹ 3060
C₹ 3120
D₹ 3250