S.I. & C.I. (9)
1. If the simple interest on a certain sum of money for 4 years is one–fifth of the sum, then the rate of interest per annum is 1. 4% 2. 7% 3. 6% 4. 5% 2. A certain sum in invested for T years. It amounts to Rs. 400 at 10% per annum. But […]