Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 84 · 40 questions

How to solve it (P × R × T ÷ 100): Simple interest = P × R × T ÷ 100 (P = principal, R = rate % per year, T = years). Amount = principal + interest. Rate = SI × 100 ÷ (P × T); time = SI × 100 ÷ (P × R).

1. 1.In how many years will ₹2000 earn ₹420 simple interest at 7% per year? (a) 3 years (b) 4 years (c) 6 years (d) 2 years
2. 2.₹3000 is invested at 10% per year simple interest. What is the amount after 5 years? (a) ₹1500 (b) ₹4800 (c) ₹3300 (d) ₹4500
3. 3.₹2500 is invested at 3% per year simple interest. What is the amount after 3 years? (a) ₹225 (b) ₹2575 (c) ₹2725 (d) ₹2800
4. 4.In how many years will ₹5000 earn ₹2750 simple interest at 11% per year? (a) 6 years (b) 4 years (c) 10 years (d) 5 years
5. 5.₹3000 is invested at 6% per year simple interest. What is the amount after 2 years? (a) ₹3360 (b) ₹360 (c) ₹3540 (d) ₹3180
6. 6.What is the simple interest on ₹10000 at 4% per year for 3 years? (a) ₹1600 (b) ₹1200 (c) ₹400 (d) ₹11200
7. 7.What is the simple interest on ₹7000 at 3% per year for 3 years? (a) ₹210 (b) ₹7630 (c) ₹840 (d) ₹630
8. 8.What is the simple interest on ₹9500 at 11% per year for 4 years? (a) ₹13680 (b) ₹4180 (c) ₹1045 (d) ₹5225
9. 9.What is the simple interest on ₹7000 at 6% per year for 3 years? (a) ₹420 (b) ₹1680 (c) ₹8260 (d) ₹1260
10. 10.₹1000 is invested at 6% per year simple interest. What is the amount after 2 years? (a) ₹1060 (b) ₹120 (c) ₹1180 (d) ₹1120
11. 11.In how many years will ₹7000 earn ₹840 simple interest at 6% per year? (a) 3 years (b) 4 years (c) 2 years (d) 1 year
12. 12.The simple interest on ₹3500 for 3 years is ₹315. What is the rate per year? (a) 4% (b) 2% (c) 9% (d) 3%
13. 13.What is the simple interest on ₹2500 at 7% per year for 2 years? (a) ₹175 (b) ₹2850 (c) ₹525 (d) ₹350
14. 14.The simple interest on ₹5500 for 5 years is ₹1925. What is the rate per year? (a) 6% (b) 35% (c) 7% (d) 8%
15. 15.₹1000 is invested at 4% per year simple interest. What is the amount after 2 years? (a) ₹1080 (b) ₹1040 (c) ₹1120 (d) ₹80
16. 16.What is the simple interest on ₹9500 at 6% per year for 5 years? (a) ₹570 (b) ₹2850 (c) ₹3420 (d) ₹12350
17. 17.In how many years will ₹6500 earn ₹390 simple interest at 2% per year? (a) 2 years (b) 4 years (c) 3 years (d) 6 years
18. 18.The simple interest on ₹5000 for 5 years is ₹500. What is the rate per year? (a) 2% (b) 1% (c) 3% (d) 10%
19. 19.What is the simple interest on ₹5500 at 6% per year for 5 years? (a) ₹7150 (b) ₹1650 (c) ₹330 (d) ₹1980
20. 20.What is the simple interest on ₹1000 at 12% per year for 2 years? (a) ₹360 (b) ₹1240 (c) ₹120 (d) ₹240
21. 21.In how many years will ₹8500 earn ₹5100 simple interest at 12% per year? (a) 5 years (b) 10 years (c) 4 years (d) 6 years
22. 22.₹6500 is invested at 7% per year simple interest. What is the amount after 3 years? (a) ₹8320 (b) ₹1365 (c) ₹7865 (d) ₹6955
23. 23.₹6500 is invested at 11% per year simple interest. What is the amount after 2 years? (a) ₹1430 (b) ₹7930 (c) ₹8645 (d) ₹7215
24. 24.In how many years will ₹8000 earn ₹1440 simple interest at 6% per year? (a) 6 years (b) 2 years (c) 4 years (d) 3 years
25. 25.In how many years will ₹7500 earn ₹450 simple interest at 2% per year? (a) 3 years (b) 2 years (c) 6 years (d) 4 years
26. 26.What is the simple interest on ₹6000 at 6% per year for 4 years? (a) ₹1800 (b) ₹1440 (c) ₹7440 (d) ₹360
27. 27.₹1000 is invested at 8% per year simple interest. What is the amount after 4 years? (a) ₹1080 (b) ₹1400 (c) ₹1320 (d) ₹320
28. 28.₹9500 is invested at 9% per year simple interest. What is the amount after 5 years? (a) ₹10355 (b) ₹13775 (c) ₹4275 (d) ₹14630
29. 29.The simple interest on ₹6500 for 4 years is ₹1560. What is the rate per year? (a) 6% (b) 24% (c) 7% (d) 5%
30. 30.The simple interest on ₹6500 for 4 years is ₹1300. What is the rate per year? (a) 20% (b) 4% (c) 6% (d) 5%
31. 31.The simple interest on ₹7500 for 3 years is ₹1575. What is the rate per year? (a) 8% (b) 6% (c) 7% (d) 21%
32. 32.In how many years will ₹2500 earn ₹300 simple interest at 4% per year? (a) 2 years (b) 4 years (c) 3 years (d) 6 years
33. 33.₹9000 is invested at 2% per year simple interest. What is the amount after 2 years? (a) ₹360 (b) ₹9180 (c) ₹9540 (d) ₹9360
34. 34.In how many years will ₹2000 earn ₹600 simple interest at 10% per year? (a) 3 years (b) 4 years (c) 6 years (d) 2 years
35. 35.₹4000 is invested at 6% per year simple interest. What is the amount after 2 years? (a) ₹480 (b) ₹4480 (c) ₹4720 (d) ₹4240
36. 36.What is the simple interest on ₹7000 at 3% per year for 2 years? (a) ₹420 (b) ₹7420 (c) ₹630 (d) ₹210
37. 37.The simple interest on ₹8500 for 2 years is ₹340. What is the rate per year? (a) 1% (b) 2% (c) 4% (d) 3%
38. 38.₹5000 is invested at 10% per year simple interest. What is the amount after 5 years? (a) ₹5500 (b) ₹2500 (c) ₹8000 (d) ₹7500
39. 39.What is the simple interest on ₹6000 at 4% per year for 3 years? (a) ₹6720 (b) ₹240 (c) ₹720 (d) ₹960
40. 40.The simple interest on ₹2000 for 3 years is ₹600. What is the rate per year? (a) 10% (b) 30% (c) 9% (d) 11%

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