A sum of money was invested at the rate of 7.5% S.I. per annum for 4 years. If the investment was for 5 years, the interest earned would have been Rs. 375 more. What was the initial sum invested?

A sum of money was invested at the rate of 7.5% S.I. per annum for 4 y

1.	A sum of money was invested at the rate of 7.5% S.I. per annum for 4 years. If the investment was for 5 years, the interest earned would have been Rs. 375 more. What was the initial sum invested?
A.	Rs. 4750
B.	Rs. 5000
C.	Rs. 4500
D.	Rs. 3750
Answer» C. Rs. 4500