Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 760 · 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 ₹1500 for 2 years is ₹180. What is the rate per year? (a) 5% (b) 12% (c) 7% (d) 6%
2. 2.What is the simple interest on ₹5500 at 7% per year for 3 years? (a) ₹1155 (b) ₹385 (c) ₹6655 (d) ₹1540
3. 3.₹1000 is invested at 12% per year simple interest. What is the amount after 5 years? (a) ₹1720 (b) ₹600 (c) ₹1120 (d) ₹1600
4. 4.What is the simple interest on ₹1000 at 3% per year for 4 years? (a) ₹150 (b) ₹1120 (c) ₹120 (d) ₹30
5. 5.The simple interest on ₹1500 for 4 years is ₹120. What is the rate per year? (a) 3% (b) 2% (c) 8% (d) 1%
6. 6.What is the simple interest on ₹6000 at 12% per year for 2 years? (a) ₹1440 (b) ₹2160 (c) ₹7440 (d) ₹720
7. 7.The simple interest on ₹6000 for 3 years is ₹1620. What is the rate per year? (a) 9% (b) 10% (c) 27% (d) 8%
8. 8.In how many years will ₹3500 earn ₹840 simple interest at 8% per year? (a) 6 years (b) 3 years (c) 4 years (d) 2 years
9. 9.₹5500 is invested at 4% per year simple interest. What is the amount after 3 years? (a) ₹5720 (b) ₹6380 (c) ₹6160 (d) ₹660
10. 10.What is the simple interest on ₹7000 at 9% per year for 3 years? (a) ₹2520 (b) ₹630 (c) ₹1890 (d) ₹8890
11. 11.The simple interest on ₹5000 for 5 years is ₹2500. What is the rate per year? (a) 10% (b) 50% (c) 11% (d) 9%
12. 12.In how many years will ₹4000 earn ₹240 simple interest at 3% per year? (a) 4 years (b) 1 year (c) 2 years (d) 3 years
13. 13.₹2500 is invested at 9% per year simple interest. What is the amount after 3 years? (a) ₹2725 (b) ₹675 (c) ₹3175 (d) ₹3400
14. 14.₹7500 is invested at 3% per year simple interest. What is the amount after 2 years? (a) ₹8175 (b) ₹7725 (c) ₹7950 (d) ₹450
15. 15.In how many years will ₹3000 earn ₹360 simple interest at 3% per year? (a) 8 years (b) 4 years (c) 5 years (d) 3 years
16. 16.The simple interest on ₹2500 for 5 years is ₹1125. What is the rate per year? (a) 9% (b) 10% (c) 45% (d) 8%
17. 17.In how many years will ₹5000 earn ₹500 simple interest at 2% per year? (a) 5 years (b) 6 years (c) 10 years (d) 4 years
18. 18.₹4000 is invested at 3% per year simple interest. What is the amount after 2 years? (a) ₹240 (b) ₹4360 (c) ₹4240 (d) ₹4120
19. 19.₹9500 is invested at 8% per year simple interest. What is the amount after 4 years? (a) ₹12540 (b) ₹10260 (c) ₹3040 (d) ₹13300
20. 20.What is the simple interest on ₹8500 at 5% per year for 5 years? (a) ₹2550 (b) ₹425 (c) ₹2125 (d) ₹10625
21. 21.What is the simple interest on ₹6000 at 11% per year for 2 years? (a) ₹1980 (b) ₹7320 (c) ₹660 (d) ₹1320
22. 22.The simple interest on ₹5500 for 5 years is ₹2750. What is the rate per year? (a) 9% (b) 11% (c) 10% (d) 50%
23. 23.What is the simple interest on ₹4000 at 2% per year for 4 years? (a) ₹320 (b) ₹80 (c) ₹4320 (d) ₹400
24. 24.What is the simple interest on ₹6500 at 6% per year for 2 years? (a) ₹780 (b) ₹7280 (c) ₹1170 (d) ₹390
25. 25.In how many years will ₹10000 earn ₹2800 simple interest at 7% per year? (a) 5 years (b) 3 years (c) 8 years (d) 4 years
26. 26.The simple interest on ₹8000 for 4 years is ₹3200. What is the rate per year? (a) 10% (b) 40% (c) 11% (d) 9%
27. 27.The simple interest on ₹1000 for 4 years is ₹400. What is the rate per year? (a) 40% (b) 9% (c) 11% (d) 10%
28. 28.What is the simple interest on ₹3000 at 9% per year for 2 years? (a) ₹810 (b) ₹540 (c) ₹270 (d) ₹3540
29. 29.What is the simple interest on ₹8500 at 6% per year for 2 years? (a) ₹1530 (b) ₹510 (c) ₹9520 (d) ₹1020
30. 30.The simple interest on ₹4000 for 3 years is ₹1080. What is the rate per year? (a) 8% (b) 27% (c) 10% (d) 9%
31. 31.The simple interest on ₹7500 for 5 years is ₹750. What is the rate per year? (a) 3% (b) 1% (c) 10% (d) 2%
32. 32.In how many years will ₹3500 earn ₹1680 simple interest at 12% per year? (a) 3 years (b) 5 years (c) 4 years (d) 8 years
33. 33.What is the simple interest on ₹2500 at 9% per year for 4 years? (a) ₹1125 (b) ₹900 (c) ₹225 (d) ₹3400
34. 34.What is the simple interest on ₹1500 at 2% per year for 2 years? (a) ₹1560 (b) ₹60 (c) ₹90 (d) ₹30
35. 35.In how many years will ₹6000 earn ₹720 simple interest at 4% per year? (a) 4 years (b) 2 years (c) 6 years (d) 3 years
36. 36.₹8500 is invested at 4% per year simple interest. What is the amount after 2 years? (a) ₹8840 (b) ₹9520 (c) ₹9180 (d) ₹680
37. 37.What is the simple interest on ₹8500 at 6% per year for 5 years? (a) ₹510 (b) ₹2550 (c) ₹11050 (d) ₹3060
38. 38.What is the simple interest on ₹2500 at 10% per year for 2 years? (a) ₹3000 (b) ₹250 (c) ₹750 (d) ₹500
39. 39.₹3000 is invested at 3% per year simple interest. What is the amount after 2 years? (a) ₹3270 (b) ₹3090 (c) ₹3180 (d) ₹180
40. 40.The simple interest on ₹7000 for 2 years is ₹1540. What is the rate per year? (a) 22% (b) 11% (c) 12% (d) 10%

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