A person invested a sum of Rs. 9000 at r% per annum at simple interest and a sum of Rs. 13500 at (r – 2) % at simple interest. If total interest earned on both the investments for 5 years is Rs. 9337.50, then the rate of interest on the first investment is:

A person invested a sum of Rs. 9000 at r% per annum at simple interest

1.	A person invested a sum of Rs. 9000 at r% per annum at simple interest and a sum of Rs. 13500 at (r – 2) % at simple interest. If total interest earned on both the investments for 5 years is Rs. 9337.50, then the rate of interest on the first investment is:
A.	7.5%
B.	8%
C.	9.5%
D.	10%
Answer» D. 10%

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A person invested a sum of Rs. 9000 at r% per annum at simple interest and a sum of Rs. 13500 at (r – 2) % at simple interest. If total interest earned on both the investments for 5 years is Rs. 9337.50, then the rate of interest on the first investment is:

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