question_answer

The simple interest on a sum of money is \[\frac{1}{9}\] of the principal and the number of years is equal to the rate percent per annum. What is the rate % per annum?

A)  \[\text{1}0%\]                 

B)         \[\text{3}%\]    

C)  \[\frac{1}{3}%\]              

D)         \[3\frac{1}{3}%\]