Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 825 · 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 ₹4000 for 3 years is ₹240. What is the rate per year? (a) 1% (b) 3% (c) 6% (d) 2%
2. 2.What is the simple interest on ₹8500 at 3% per year for 5 years? (a) ₹9775 (b) ₹255 (c) ₹1530 (d) ₹1275
3. 3.₹2000 is invested at 11% per year simple interest. What is the amount after 2 years? (a) ₹440 (b) ₹2220 (c) ₹2660 (d) ₹2440
4. 4.₹9000 is invested at 3% per year simple interest. What is the amount after 2 years? (a) ₹540 (b) ₹9810 (c) ₹9540 (d) ₹9270
5. 5.₹2000 is invested at 6% per year simple interest. What is the amount after 4 years? (a) ₹480 (b) ₹2120 (c) ₹2600 (d) ₹2480
6. 6.In how many years will ₹10000 earn ₹600 simple interest at 3% per year? (a) 4 years (b) 1 year (c) 2 years (d) 3 years
7. 7.The simple interest on ₹5000 for 3 years is ₹1200. What is the rate per year? (a) 24% (b) 9% (c) 7% (d) 8%
8. 8.What is the simple interest on ₹4500 at 10% per year for 5 years? (a) ₹6750 (b) ₹450 (c) ₹2700 (d) ₹2250
9. 9.What is the simple interest on ₹1500 at 4% per year for 3 years? (a) ₹180 (b) ₹240 (c) ₹1680 (d) ₹60
10. 10.The simple interest on ₹3000 for 3 years is ₹990. What is the rate per year? (a) 12% (b) 33% (c) 10% (d) 11%
11. 11.₹4000 is invested at 9% per year simple interest. What is the amount after 5 years? (a) ₹6160 (b) ₹1800 (c) ₹4360 (d) ₹5800
12. 12.The simple interest on ₹10000 for 5 years is ₹1000. What is the rate per year? (a) 2% (b) 3% (c) 10% (d) 1%
13. 13.The simple interest on ₹6000 for 4 years is ₹2160. What is the rate per year? (a) 10% (b) 8% (c) 9% (d) 36%
14. 14.What is the simple interest on ₹2500 at 8% per year for 2 years? (a) ₹200 (b) ₹400 (c) ₹2900 (d) ₹600
15. 15.In how many years will ₹9500 earn ₹2850 simple interest at 6% per year? (a) 6 years (b) 10 years (c) 5 years (d) 4 years
16. 16.The simple interest on ₹4000 for 2 years is ₹480. What is the rate per year? (a) 7% (b) 12% (c) 5% (d) 6%
17. 17.What is the simple interest on ₹6000 at 4% per year for 3 years? (a) ₹720 (b) ₹6720 (c) ₹240 (d) ₹960
18. 18.The simple interest on ₹9000 for 5 years is ₹4500. What is the rate per year? (a) 50% (b) 10% (c) 11% (d) 9%
19. 19.In how many years will ₹3000 earn ₹600 simple interest at 10% per year? (a) 3 years (b) 2 years (c) 4 years (d) 1 year
20. 20.₹7000 is invested at 9% per year simple interest. What is the amount after 3 years? (a) ₹9520 (b) ₹8890 (c) ₹1890 (d) ₹7630
21. 21.The simple interest on ₹6000 for 2 years is ₹600. What is the rate per year? (a) 6% (b) 10% (c) 5% (d) 4%
22. 22.In how many years will ₹9000 earn ₹4320 simple interest at 12% per year? (a) 8 years (b) 3 years (c) 4 years (d) 5 years
23. 23.₹6500 is invested at 5% per year simple interest. What is the amount after 5 years? (a) ₹8450 (b) ₹6825 (c) ₹8125 (d) ₹1625
24. 24.The simple interest on ₹1500 for 4 years is ₹540. What is the rate per year? (a) 10% (b) 8% (c) 9% (d) 36%
25. 25.The simple interest on ₹1000 for 4 years is ₹80. What is the rate per year? (a) 1% (b) 3% (c) 2% (d) 8%
26. 26.In how many years will ₹9000 earn ₹2700 simple interest at 10% per year? (a) 2 years (b) 6 years (c) 4 years (d) 3 years
27. 27.₹1000 is invested at 6% per year simple interest. What is the amount after 2 years? (a) ₹1180 (b) ₹1060 (c) ₹120 (d) ₹1120
28. 28.What is the simple interest on ₹1000 at 7% per year for 4 years? (a) ₹70 (b) ₹350 (c) ₹280 (d) ₹1280
29. 29.₹4000 is invested at 7% per year simple interest. What is the amount after 3 years? (a) ₹840 (b) ₹5120 (c) ₹4840 (d) ₹4280
30. 30.In how many years will ₹8000 earn ₹480 simple interest at 3% per year? (a) 1 year (b) 3 years (c) 2 years (d) 4 years
31. 31.In how many years will ₹3500 earn ₹630 simple interest at 9% per year? (a) 1 year (b) 2 years (c) 4 years (d) 3 years
32. 32.In how many years will ₹3000 earn ₹600 simple interest at 4% per year? (a) 5 years (b) 4 years (c) 10 years (d) 6 years
33. 33.What is the simple interest on ₹2000 at 9% per year for 5 years? (a) ₹180 (b) ₹1080 (c) ₹2900 (d) ₹900
34. 34.The simple interest on ₹9000 for 4 years is ₹2880. What is the rate per year? (a) 9% (b) 32% (c) 8% (d) 7%
35. 35.In how many years will ₹9500 earn ₹1900 simple interest at 10% per year? (a) 3 years (b) 1 year (c) 2 years (d) 4 years
36. 36.In how many years will ₹4000 earn ₹840 simple interest at 7% per year? (a) 2 years (b) 4 years (c) 6 years (d) 3 years
37. 37.What is the simple interest on ₹4000 at 11% per year for 2 years? (a) ₹1320 (b) ₹880 (c) ₹440 (d) ₹4880
38. 38.What is the simple interest on ₹3500 at 9% per year for 3 years? (a) ₹945 (b) ₹1260 (c) ₹4445 (d) ₹315
39. 39.The simple interest on ₹9000 for 3 years is ₹1080. What is the rate per year? (a) 12% (b) 3% (c) 4% (d) 5%
40. 40.What is the simple interest on ₹7500 at 12% per year for 2 years? (a) ₹1800 (b) ₹9300 (c) ₹2700 (d) ₹900

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