If the simple interest on a sum of money at fifteen percent per annum for four years is Rs.9000, compound interest on the same sum for the same period at the same rate of interest is  Choose the most appropriate option: A) 10,250.50 B) 12,010.50 C) 12,250.00 D) 10,012.50 E) 13,626.50
S I for 4 years = 9000 ie for one year =2250   The compound interest for Rs.2250 for the next three years = 2250(3)=6750, 6750*15/100 = 1012.50   The CI for four years 9000+1012.50 = 10,012.50   ANSWER:10,012.50
<result>D</result>
If the simple interest on a sum of money at fifteen percent per annum for four years is Rs.9000, compound interest on the same sum for the same period at the same rate of interest is