Compound Interest
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Compound Interest
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25 Questions

1. The difference between compound interest and simple interest on a certain sum of money at 10% per annum for 2 years is Rs. 40. The sum is:
2. A sum of Rs. 12000 deposited at compound interest becomes double after 5 years. How much will it be after 20 years?
3. At what rate per annum will Rs. 32000 yield a compound interest of Rs. 5044 in 9 months interest being compounded quarterly?
4. On a certain sum of money - the difference between the compound interest for a year - payable half yearly - and the simple interest for a year is Rs. 180. If the rate of interest in both the cases is 10% - then the sum is:
5. If the compound interest on a sum of money for 3 years at the rate of 5% per annum is Rs. 252.20 - the simple interest on the same sum at the same rate and for the same time is:
6. The difference between the compound interest compounded annually and the simple interest on a sum of Rs. 1000 at a certain rate of interest for 2 years is Rs. 10. The rate of interest per annum is:
7. An amount of Rs. 6000 lent at 5% per annum compound interest for 2 years will become
8. The compound interest on Rs. 16000 for 9 months at 20% per annum - interest being compounded quarterly is:
9. A sum of money on compound interest amounts to Rs. 10648 in 3 years and Rs. 9680 in 2 years. The rate of interest per annum is:
10. If the rate of interest be 4% per annum for first year - 5% per annum for second year and 6% per annum for third year - then the compound interest of Rs. 10000 for 3 years will be:
11. A man borrows Rs. 21000 at 10% compound interest. How much he has to pay annually at the end of each year - to settle his loan in two years?
12. The amount on Rs. 25000 in 2 years at annually compound interest. If the rates for the successive years be 4% and 5% per annum respectively is:
13. In how many years will a sum of Rs. 800 at 10% per annum compound interest - compounded semiannually becomes Rs. 926.10?
14. The difference between the simple and compound interest on a certain sum of money at 5% rate of interest per annum for 2 years is Rs. 15. Then the sum is:
15. The compound interest on a certain sum of money at 5% per annum for 2 years is Rs. 246. The simple interest on the same sum for 3 years at 6% per annum is:
16. Sita deposited Rs. 5000 at 10% simple interest for 2 years. How much more money will Sita have in her account at the end of two years. If it is compounded semiannually.
17. A sum of money placed at compound interest doubles itself in 15 years. In how many years - it would amount to eight times of itself at the same rate of interest ?
18. At what rate of compound interest per annum will a sum of Rs. 1200 become Rs. 1348.32 in 2 years?
19. A sum of Rs. 13360 was borrowed at 35/4% per annum compound interest and paid in two years in two equal annual installments. What was the amount of each installments?
20. If the difference between the simple and compound interests on a sum of money for 2 years at 4% per annum is Rs. 800 - the sum is:
21. The difference between the compound interest and simple interest on a certain sum for 2 years at 10% per annum is Rs. 300. Find the sum.
22. On what sum of money will the difference between simple interest and compound interest for 2 years at 5% per annum be equal to Rs 63
23. A sum of money invested at compound interest amounts to Rs. 650 at eh end of first year and Rs. 676 at the end of second year. The sum of money is:
24. If the compound interest on a certain sum for 2 years at 3% per annum is Rs. 101.50 - then the simple interest on the same sum at the same rate and for the same time will be:
25. A man invests Rs. 2000 at 5% compound interest. At the end of 3 years he will have :