The compound interest, (interest being compounded annually), on a certain sum at a certain rate of interest for the second year is Rs 7,680 and for the third year is Rs 9,216. What will be the simple interest on the same sum at the same rate for \(4\frac{1}{2}\) years?

The compound interest, (interest being compounded annually), on a cert

1.	The compound interest, (interest being compounded annually), on a certain sum at a certain rate of interest for the second year is Rs 7,680 and for the third year is Rs 9,216. What will be the simple interest on the same sum at the same rate for \(4\frac{1}{2}\) years?
A.	28,800
B.	28,600
C.	28,400
D.	28,200
Answer» B. 28,600