The simple interest on a sum of money is 16/25 of the principal. The number of years is equal to the rate of interest per annum. What is the rate (in percentage) of interest per annum?

The simple interest on a sum of money is 16/25 of the principal. The n

1.	The simple interest on a sum of money is 16/25 of the principal. The number of years is equal to the rate of interest per annum. What is the rate (in percentage) of interest per annum?
A.	4
B.	16
C.	8
D.	12
Answer» D. 12