Simple interest on a certain sum for 6 years is 9/25 of the sum. The rate of interest is
Simple interest = $$\frac{PRT}{100}$$Â (where P is principal amount , R is rate and T is time )
So $$\frac{9P}{25} = \frac{PR \times 6}{100}$$
$$R=6$$%
Create a FREE account and get: