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Table of Contents
SIMPLE INTEREST AND COMPOUND INTEREST
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21. Out of a certain sum, 1/3 rd is invested at 3%, 1/6th at 6% and the rest at 8%. If the simple interest for 2 years from all these investments amounts to ₹600, find the original sum.
- ₹5000
- ₹6000
- ₹5500
- ₹6500
22. A sum of ₹2800 is lent out in two parts in a such a way that the interest on one part at 9% per annum for 4 years is equal to that on another at 8% per annum for 6 years. the sum lent out at 8% is
- ₹1200
- ₹1600
- ₹1400
- None of these
23. Two equal sums of money were lent at simple interest at 10% per annum for 4 years and 5 years respectively. If the difference in interests for two periods was ₹220, then each sum is:
- ₹880
- ₹1100
- ₹2200
- ₹1640
24. A farmer borrowed ₹4200 at 10% per annum. At the end of 5 years he cleared his account by paying ₹5000 and a cow. The cost of the cow is:
- ₹1300
- ₹1240
- ₹1200
- ₹1340
25. Find the sum of compound interest on ₹9375 at 8% per annum for 2 years
- ₹1560
- ₹1512
- ₹1590
- ₹1548
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26. Find the compound interest on ₹20000 at 12% per annum for 6 months, compounded quarterly.
- ₹1415
- ₹1096
- ₹1218
- ₹1321
27. Karieppen deposited a sum of ₹16000 in a post office for 3 years, compounded annually at 15% per annum. What amount will he get on maturity?
- ₹21752
- ₹26020
- ₹24334
- ₹23525
28. In a factory, the production of cement rises to 2420 tonnes from 2000 tonnes in two years. Find the rate of growth per annum.
- 8%
- 9%
- 10%
- 11%
29. The population of a town as 250000 three years ago. If it had increased by 3%, 4% and 6% in the last three years. Find the present population of the town.
- ₹200863
- ₹284888
- ₹217392
- ₹283868
30. If the compound interest on a certain sum of 2 years at 3% can be ₹101.50, what would be the simple interest?
- ₹100
- ₹98
- ₹96.50
- ₹94
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31. The difference between the simple and the compound interests on ₹8000 at 10% per annum for 3 years is
- ₹260
- ₹352
- ₹248
- ₹310
32. A deposited ₹5000 in a bank at 5% per annum simple interest. B deposited ₹8000 at 6% per annum compound interest. After 2 years, the difference between their interests will be:
- ₹244.40
- ₹488.80
- ₹366.60
- ₹122.20
33. The difference between compound and simple interests on a sum for 2 years at 8% per annum is ₹64. The sum is:
- ₹12000
- ₹11000
- ₹13000
- ₹10000
34. The sum of money amounts to ₹6272 in 2 years and ₹7024.64 in 3 years. The rate of interest per annum is
- 8% per annum
- 12% per annum
- 6% per annum
- 10% per annum
35. If the rate of interest be 5% per annum for first year, 8% per annum for second year and 12% per annum for third year, then the compound interest of ₹8000 for 3 years will be:
- ₹10550.16
- ₹10480.24
- ₹10160.64
- ₹10350.36
ANSWER KEY :
| 1.c 2.B 3 a 4 a 5 a 6 b 7 c 8 a 9 d 10 b 11 b 12 a 13 b 14 b 15 b 16 c 17 d 18 c 19 d 20 c | 21 a 22 a 23 c 24 a 25 a 26 c 27 c 28 c 29 d 30 a 31 c 32 b 33 d 34 b 35 c |
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