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Compound Interest Problems 2
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Compound Interest Problems 2
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25 Questions

1. Mr Hira finds that the difference between compound interest and simple interest on Rs. 15,000 given for 2 years is Rs. 96. What is the rate of interest per annum paid by him?
2. Mrs Kalpana invested Rs. 1,50,000 in the name of her daughter Vridhi in two schemes A and B offering compound interest @ 5% p.a. and 10% p.a. respectively. If the total amount of interest accrued through two schemes together in two years was Rs. 20,750. Find out the amount invested in Scheme A?
3. The compound interest on a sum for 2 years is Rs. 32 more than the simple interest on the same sum for the same period which is Rs. 800. The difference between the compound and simple interest for 3rd year will be
4. A tree increases annually by th of its height. If its height today is 50 cm, what will be the height after 2 years?
5. What will be the compound interest on a sum of Rs. 40,000 after 3 years at the rate of 11% p.a.?
6. Nitish borrows Rs. 20,000 at 10% compound interest. At the end of every year he pays Rs. 2000 as part repayment. How much does he still owe after three such instalments?
7. If a sum on compound interest becomes three times in 4 years, then with the same interest rate, the sum will become 81 times in:
8. The present worth of Rs. 242 due in 2 years at 10% per annum compound interest is:
9. What annual payment will discharge a debt of Rs. 1025 due in 2 years at the rate of 5% compound interest?
10. Amrit earns an interest of Rs. 1,596 for the third year and Rs. 1,400 for the second year on the same sum Find the rate of interest if he lends at compound interest.
11. What is the difference between the compound interests on Rs. 5000 borrowed by Ramesh Kumar for 11⁄2 years at 4% per annum compounded yearly and half-yearly?
12. In how much time (in months), the compound interest, compounded annually, on Rs. 30,000 at 7% per annum is Rs. 4,347?
13. A sum amounts to Rs. 970.20 in 2 years at 5% compound interest. The sum is
14. A bank offers 10% interest rate compounded annually. Mr Roshan Lal deposits Rs. 2,00,000 every year in his account. If he does not withdraw any amount, then how much balance will his account show after four years?
15. A sum is invested for 3 years compounded at 5%, 10% and 20% respectively. In three years, if the sum amounts to Rs. 1386, then find the sum.
16. If the compound interest on a certain sum for 2 years in Rs. 80.80 and the simple interest is Rs. 0.80 p lesser than it, then the rate of interest per annum is?
17. Shri Kailash Nath found that the difference between the simple interest and compound interests on some principal amount at 20% for 3 years is Rs. 2,880. Then the principal amount is?
18. A sum of money placed at compound interest doubles itself in 4 years. In how many years will it amount to 8 times?
19. At what rate of compound interest per annum will a sum of Rs. 1,400 earn Rs. 173.04 in 2 years?
20. A sum of money amounts to Rs. 6690 after 3 years and to Rs. 10,035 after 6 years on compound interest. Find the sum.
21. What will be the minimum number of complete years in which a sum of money put out at 20% compound interest will earn equal to itself?
22. Divide Rs. 3364 between A and B, so that A’s Share at the end of 5 years may equal to B’s share at the end of 7 years, compound interest being at 5 percent.
23. A sum is invested at compounded interest payable annually. The interest in the first two successive years was Rs. 400 and Rs. 420. The sum is
24. The Compound interest on Rs. 10,240 at 6 % per annum for 2 years 73 days, is:
25. The difference between the simple interest on a certain sum at the rate off 10% per annum for 2 years and compound interest which is compounded every 6 months is Rs. 124.05. What is the principal sum?