Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 317 · 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.₹8500 is invested at 9% per year simple interest. What is the amount after 5 years? (a) ₹13090 (b) ₹3825 (c) ₹9265 (d) ₹12325
2. 2.₹9500 is invested at 4% per year simple interest. What is the amount after 4 years? (a) ₹11020 (b) ₹11400 (c) ₹1520 (d) ₹9880
3. 3.The simple interest on ₹2000 for 2 years is ₹80. What is the rate per year? (a) 1% (b) 2% (c) 4% (d) 3%
4. 4.What is the simple interest on ₹3500 at 4% per year for 2 years? (a) ₹280 (b) ₹3780 (c) ₹140 (d) ₹420
5. 5.₹9000 is invested at 2% per year simple interest. What is the amount after 2 years? (a) ₹9180 (b) ₹9540 (c) ₹360 (d) ₹9360
6. 6.The simple interest on ₹9500 for 5 years is ₹1900. What is the rate per year? (a) 20% (b) 5% (c) 3% (d) 4%
7. 7.What is the simple interest on ₹4500 at 7% per year for 5 years? (a) ₹315 (b) ₹6075 (c) ₹1575 (d) ₹1890
8. 8.What is the simple interest on ₹7500 at 5% per year for 3 years? (a) ₹375 (b) ₹1125 (c) ₹8625 (d) ₹1500
9. 9.₹4000 is invested at 2% per year simple interest. What is the amount after 4 years? (a) ₹4080 (b) ₹320 (c) ₹4400 (d) ₹4320
10. 10.The simple interest on ₹2500 for 2 years is ₹100. What is the rate per year? (a) 3% (b) 1% (c) 4% (d) 2%
11. 11.What is the simple interest on ₹1000 at 9% per year for 4 years? (a) ₹90 (b) ₹360 (c) ₹1360 (d) ₹450
12. 12.The simple interest on ₹8500 for 3 years is ₹1785. What is the rate per year? (a) 8% (b) 21% (c) 6% (d) 7%
13. 13.What is the simple interest on ₹1500 at 7% per year for 5 years? (a) ₹525 (b) ₹105 (c) ₹630 (d) ₹2025
14. 14.₹1000 is invested at 7% per year simple interest. What is the amount after 5 years? (a) ₹1070 (b) ₹350 (c) ₹1420 (d) ₹1350
15. 15.The simple interest on ₹5000 for 2 years is ₹500. What is the rate per year? (a) 5% (b) 6% (c) 4% (d) 10%
16. 16.In how many years will ₹6000 earn ₹960 simple interest at 4% per year? (a) 4 years (b) 5 years (c) 3 years (d) 8 years
17. 17.₹5500 is invested at 9% per year simple interest. What is the amount after 2 years? (a) ₹5995 (b) ₹6490 (c) ₹990 (d) ₹6985
18. 18.₹7500 is invested at 7% per year simple interest. What is the amount after 4 years? (a) ₹2100 (b) ₹8025 (c) ₹10125 (d) ₹9600
19. 19.What is the simple interest on ₹8500 at 8% per year for 3 years? (a) ₹2040 (b) ₹2720 (c) ₹680 (d) ₹10540
20. 20.What is the simple interest on ₹7500 at 2% per year for 3 years? (a) ₹7950 (b) ₹150 (c) ₹600 (d) ₹450
21. 21.In how many years will ₹3500 earn ₹280 simple interest at 2% per year? (a) 5 years (b) 8 years (c) 3 years (d) 4 years
22. 22.₹7000 is invested at 2% per year simple interest. What is the amount after 4 years? (a) ₹7140 (b) ₹560 (c) ₹7560 (d) ₹7700
23. 23.The simple interest on ₹10000 for 2 years is ₹1800. What is the rate per year? (a) 8% (b) 18% (c) 9% (d) 10%
24. 24.In how many years will ₹7000 earn ₹1470 simple interest at 7% per year? (a) 6 years (b) 4 years (c) 3 years (d) 2 years
25. 25.₹9500 is invested at 9% per year simple interest. What is the amount after 4 years? (a) ₹3420 (b) ₹13775 (c) ₹10355 (d) ₹12920
26. 26.The simple interest on ₹7000 for 4 years is ₹2520. What is the rate per year? (a) 36% (b) 8% (c) 10% (d) 9%
27. 27.The simple interest on ₹1000 for 4 years is ₹80. What is the rate per year? (a) 2% (b) 8% (c) 1% (d) 3%
28. 28.What is the simple interest on ₹6000 at 9% per year for 3 years? (a) ₹540 (b) ₹7620 (c) ₹2160 (d) ₹1620
29. 29.What is the simple interest on ₹5000 at 6% per year for 2 years? (a) ₹300 (b) ₹900 (c) ₹600 (d) ₹5600
30. 30.In how many years will ₹1000 earn ₹140 simple interest at 7% per year? (a) 1 year (b) 3 years (c) 4 years (d) 2 years
31. 31.The simple interest on ₹2500 for 2 years is ₹300. What is the rate per year? (a) 6% (b) 5% (c) 7% (d) 12%
32. 32.₹4500 is invested at 9% per year simple interest. What is the amount after 4 years? (a) ₹1620 (b) ₹6120 (c) ₹6525 (d) ₹4905
33. 33.In how many years will ₹9000 earn ₹1080 simple interest at 4% per year? (a) 2 years (b) 6 years (c) 4 years (d) 3 years
34. 34.In how many years will ₹3500 earn ₹1260 simple interest at 9% per year? (a) 8 years (b) 5 years (c) 3 years (d) 4 years
35. 35.₹7500 is invested at 6% per year simple interest. What is the amount after 2 years? (a) ₹900 (b) ₹7950 (c) ₹8400 (d) ₹8850
36. 36.The simple interest on ₹6000 for 3 years is ₹1620. What is the rate per year? (a) 27% (b) 8% (c) 10% (d) 9%
37. 37.What is the simple interest on ₹1500 at 8% per year for 5 years? (a) ₹600 (b) ₹720 (c) ₹120 (d) ₹2100
38. 38.₹3500 is invested at 3% per year simple interest. What is the amount after 5 years? (a) ₹4130 (b) ₹525 (c) ₹4025 (d) ₹3605
39. 39.₹1500 is invested at 12% per year simple interest. What is the amount after 3 years? (a) ₹2220 (b) ₹540 (c) ₹1680 (d) ₹2040
40. 40.The simple interest on ₹4000 for 2 years is ₹160. What is the rate per year? (a) 2% (b) 1% (c) 3% (d) 4%

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