Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 130 · 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.The simple interest on ₹3500 for 3 years is ₹420. What is the rate per year? (a) 4% (b) 5% (c) 3% (d) 12%
2. 2.In how many years will ₹7000 earn ₹2800 simple interest at 8% per year? (a) 5 years (b) 6 years (c) 10 years (d) 4 years
3. 3.What is the simple interest on ₹1000 at 7% per year for 3 years? (a) ₹210 (b) ₹70 (c) ₹280 (d) ₹1210
4. 4.In how many years will ₹3500 earn ₹420 simple interest at 3% per year? (a) 3 years (b) 5 years (c) 4 years (d) 8 years
5. 5.What is the simple interest on ₹6000 at 5% per year for 3 years? (a) ₹6900 (b) ₹1200 (c) ₹900 (d) ₹300
6. 6.In how many years will ₹3000 earn ₹1200 simple interest at 10% per year? (a) 8 years (b) 3 years (c) 4 years (d) 5 years
7. 7.₹6500 is invested at 7% per year simple interest. What is the amount after 5 years? (a) ₹2275 (b) ₹9230 (c) ₹8775 (d) ₹6955
8. 8.In how many years will ₹3000 earn ₹750 simple interest at 5% per year? (a) 5 years (b) 6 years (c) 10 years (d) 4 years
9. 9.What is the simple interest on ₹7000 at 12% per year for 4 years? (a) ₹4200 (b) ₹3360 (c) ₹840 (d) ₹10360
10. 10.In how many years will ₹3500 earn ₹210 simple interest at 3% per year? (a) 2 years (b) 1 year (c) 4 years (d) 3 years
11. 11.The simple interest on ₹2500 for 4 years is ₹500. What is the rate per year? (a) 6% (b) 20% (c) 5% (d) 4%
12. 12.What is the simple interest on ₹5000 at 2% per year for 4 years? (a) ₹500 (b) ₹100 (c) ₹400 (d) ₹5400
13. 13.What is the simple interest on ₹9000 at 12% per year for 2 years? (a) ₹3240 (b) ₹2160 (c) ₹11160 (d) ₹1080
14. 14.₹5000 is invested at 10% per year simple interest. What is the amount after 4 years? (a) ₹7500 (b) ₹7000 (c) ₹2000 (d) ₹5500
15. 15.What is the simple interest on ₹4500 at 3% per year for 2 years? (a) ₹4770 (b) ₹405 (c) ₹270 (d) ₹135
16. 16.What is the simple interest on ₹3500 at 6% per year for 2 years? (a) ₹210 (b) ₹420 (c) ₹3920 (d) ₹630
17. 17.The simple interest on ₹8000 for 2 years is ₹1120. What is the rate per year? (a) 14% (b) 6% (c) 7% (d) 8%
18. 18.₹5000 is invested at 12% per year simple interest. What is the amount after 5 years? (a) ₹5600 (b) ₹8000 (c) ₹3000 (d) ₹8600
19. 19.The simple interest on ₹1000 for 5 years is ₹100. What is the rate per year? (a) 2% (b) 1% (c) 10% (d) 3%
20. 20.The simple interest on ₹3000 for 2 years is ₹600. What is the rate per year? (a) 10% (b) 20% (c) 11% (d) 9%
21. 21.In how many years will ₹5500 earn ₹440 simple interest at 2% per year? (a) 5 years (b) 8 years (c) 4 years (d) 3 years
22. 22.The simple interest on ₹10000 for 2 years is ₹400. What is the rate per year? (a) 2% (b) 1% (c) 3% (d) 4%
23. 23.The simple interest on ₹6000 for 2 years is ₹1200. What is the rate per year? (a) 9% (b) 20% (c) 11% (d) 10%
24. 24.In how many years will ₹2000 earn ₹660 simple interest at 11% per year? (a) 4 years (b) 6 years (c) 2 years (d) 3 years
25. 25.What is the simple interest on ₹8500 at 8% per year for 2 years? (a) ₹680 (b) ₹9860 (c) ₹2040 (d) ₹1360
26. 26.In how many years will ₹5500 earn ₹770 simple interest at 7% per year? (a) 1 year (b) 4 years (c) 3 years (d) 2 years
27. 27.What is the simple interest on ₹9000 at 3% per year for 3 years? (a) ₹810 (b) ₹9810 (c) ₹270 (d) ₹1080
28. 28.What is the simple interest on ₹4500 at 12% per year for 4 years? (a) ₹6660 (b) ₹2700 (c) ₹2160 (d) ₹540
29. 29.₹5500 is invested at 7% per year simple interest. What is the amount after 2 years? (a) ₹770 (b) ₹6655 (c) ₹5885 (d) ₹6270
30. 30.The simple interest on ₹4500 for 3 years is ₹1080. What is the rate per year? (a) 9% (b) 24% (c) 7% (d) 8%
31. 31.₹1000 is invested at 7% per year simple interest. What is the amount after 2 years? (a) ₹1070 (b) ₹1210 (c) ₹140 (d) ₹1140
32. 32.₹4000 is invested at 9% per year simple interest. What is the amount after 2 years? (a) ₹4360 (b) ₹5080 (c) ₹720 (d) ₹4720
33. 33.What is the simple interest on ₹10000 at 12% per year for 5 years? (a) ₹6000 (b) ₹1200 (c) ₹7200 (d) ₹16000
34. 34.₹9500 is invested at 4% per year simple interest. What is the amount after 2 years? (a) ₹10640 (b) ₹760 (c) ₹9880 (d) ₹10260
35. 35.The simple interest on ₹3500 for 2 years is ₹420. What is the rate per year? (a) 5% (b) 12% (c) 6% (d) 7%
36. 36.The simple interest on ₹3500 for 5 years is ₹350. What is the rate per year? (a) 10% (b) 2% (c) 1% (d) 3%
37. 37.What is the simple interest on ₹2000 at 3% per year for 4 years? (a) ₹2240 (b) ₹240 (c) ₹60 (d) ₹300
38. 38.₹5000 is invested at 3% per year simple interest. What is the amount after 5 years? (a) ₹750 (b) ₹5750 (c) ₹5150 (d) ₹5900
39. 39.The simple interest on ₹5000 for 2 years is ₹300. What is the rate per year? (a) 4% (b) 2% (c) 3% (d) 6%
40. 40.In how many years will ₹1500 earn ₹315 simple interest at 7% per year? (a) 6 years (b) 3 years (c) 4 years (d) 2 years

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