1. | A sum was invested on simple interest at a certain rate for 2 years. Had it been put at 3% higher rate, it would have fetched 72 more. The sum is ? | |
2. | The amount 2,100 became 2,352 in 2 years at simple interest. If the interest rate is decreased by 1%, what is the new interest ? | |
3. | A man invests half his capital at the rate of 10% per annum, one third at 9% and the rest at 12% per annum. The average rate of interest per annum, which he gets, is ? | |
4. | The simple interest on Rs. 36,000 for the period from 5th January to 31st May, 2013 at 9.5% per annum is ? | |
5. | In how many years will a sum of money double itself at 12% per annum ? | |
6. | If 12,000 is divided into two parts such that the simple interest on the first part for 3 years at 12% per annum is equal to the simple interest on the second part for 4 and 1/2 years at 16% per annum, the greater part is ? | |
7. | Equal sum of money are lent to X and Y at 7.5% per annum for a period of 4 years and 5 years respectively. If the difference in interest, paid by them was 150, the sum lent to each was ? | |
8. | In how many years will the simple interest on a sum of money be equal to the principal at the rate of 16 and 2/3 % per annum ? | |
9. | A sum of money was invested at a certain rate of simple interest for 2 years . Had it been invested at 1% higher rate, it would have fetched 24 more interest. The sum of money is : ? | |
10. | John invested a sum of money at an annual simple interest rate of 10%. At the end of four years the amount invested plus interest earned was 770. The amount invested was ? | |