Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 721 · 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 ₹3000 for 3 years is ₹990. What is the rate per year? (a) 33% (b) 10% (c) 12% (d) 11%
2. 2.₹8500 is invested at 6% per year simple interest. What is the amount after 3 years? (a) ₹10540 (b) ₹1530 (c) ₹9010 (d) ₹10030
3. 3.₹8500 is invested at 6% per year simple interest. What is the amount after 4 years? (a) ₹10540 (b) ₹2040 (c) ₹11050 (d) ₹9010
4. 4.In how many years will ₹9000 earn ₹4050 simple interest at 9% per year? (a) 6 years (b) 10 years (c) 4 years (d) 5 years
5. 5.What is the simple interest on ₹4500 at 11% per year for 5 years? (a) ₹495 (b) ₹2970 (c) ₹6975 (d) ₹2475
6. 6.₹8500 is invested at 6% per year simple interest. What is the amount after 2 years? (a) ₹10030 (b) ₹9520 (c) ₹9010 (d) ₹1020
7. 7.₹9500 is invested at 3% per year simple interest. What is the amount after 4 years? (a) ₹9785 (b) ₹10640 (c) ₹10925 (d) ₹1140
8. 8.₹1000 is invested at 4% per year simple interest. What is the amount after 3 years? (a) ₹1040 (b) ₹120 (c) ₹1160 (d) ₹1120
9. 9.The simple interest on ₹3000 for 2 years is ₹240. What is the rate per year? (a) 5% (b) 3% (c) 4% (d) 8%
10. 10.In how many years will ₹7500 earn ₹1350 simple interest at 9% per year? (a) 4 years (b) 2 years (c) 1 year (d) 3 years
11. 11.The simple interest on ₹9500 for 4 years is ₹1140. What is the rate per year? (a) 12% (b) 4% (c) 3% (d) 2%
12. 12.What is the simple interest on ₹3500 at 11% per year for 4 years? (a) ₹385 (b) ₹5040 (c) ₹1925 (d) ₹1540
13. 13.₹3000 is invested at 2% per year simple interest. What is the amount after 4 years? (a) ₹3060 (b) ₹240 (c) ₹3300 (d) ₹3240
14. 14.In how many years will ₹3000 earn ₹1350 simple interest at 9% per year? (a) 5 years (b) 4 years (c) 6 years (d) 10 years
15. 15.The simple interest on ₹3000 for 4 years is ₹840. What is the rate per year? (a) 6% (b) 7% (c) 28% (d) 8%
16. 16.What is the simple interest on ₹1500 at 4% per year for 2 years? (a) ₹1620 (b) ₹60 (c) ₹180 (d) ₹120
17. 17.In how many years will ₹2000 earn ₹720 simple interest at 12% per year? (a) 4 years (b) 6 years (c) 2 years (d) 3 years
18. 18.The simple interest on ₹9000 for 2 years is ₹1800. What is the rate per year? (a) 11% (b) 20% (c) 10% (d) 9%
19. 19.What is the simple interest on ₹1500 at 6% per year for 3 years? (a) ₹90 (b) ₹270 (c) ₹360 (d) ₹1770
20. 20.In how many years will ₹3500 earn ₹280 simple interest at 4% per year? (a) 4 years (b) 2 years (c) 3 years (d) 1 year
21. 21.The simple interest on ₹7000 for 5 years is ₹700. What is the rate per year? (a) 1% (b) 2% (c) 3% (d) 10%
22. 22.The simple interest on ₹10000 for 4 years is ₹3200. What is the rate per year? (a) 9% (b) 32% (c) 8% (d) 7%
23. 23.What is the simple interest on ₹6500 at 8% per year for 5 years? (a) ₹9100 (b) ₹520 (c) ₹3120 (d) ₹2600
24. 24.What is the simple interest on ₹2500 at 6% per year for 4 years? (a) ₹3100 (b) ₹750 (c) ₹600 (d) ₹150
25. 25.The simple interest on ₹8500 for 5 years is ₹1275. What is the rate per year? (a) 3% (b) 15% (c) 4% (d) 2%
26. 26.The simple interest on ₹5500 for 4 years is ₹1100. What is the rate per year? (a) 20% (b) 4% (c) 6% (d) 5%
27. 27.The simple interest on ₹3000 for 4 years is ₹1320. What is the rate per year? (a) 44% (b) 10% (c) 12% (d) 11%
28. 28.What is the simple interest on ₹5000 at 5% per year for 3 years? (a) ₹750 (b) ₹5750 (c) ₹1000 (d) ₹250
29. 29.The simple interest on ₹5000 for 4 years is ₹1200. What is the rate per year? (a) 24% (b) 7% (c) 6% (d) 5%
30. 30.What is the simple interest on ₹6000 at 7% per year for 4 years? (a) ₹7680 (b) ₹1680 (c) ₹2100 (d) ₹420
31. 31.In how many years will ₹7500 earn ₹900 simple interest at 3% per year? (a) 3 years (b) 8 years (c) 4 years (d) 5 years
32. 32.What is the simple interest on ₹3500 at 8% per year for 4 years? (a) ₹4620 (b) ₹1400 (c) ₹1120 (d) ₹280
33. 33.What is the simple interest on ₹7500 at 6% per year for 2 years? (a) ₹900 (b) ₹1350 (c) ₹450 (d) ₹8400
34. 34.In how many years will ₹6500 earn ₹1560 simple interest at 8% per year? (a) 4 years (b) 6 years (c) 2 years (d) 3 years
35. 35.The simple interest on ₹3000 for 3 years is ₹900. What is the rate per year? (a) 11% (b) 10% (c) 9% (d) 30%
36. 36.The simple interest on ₹6000 for 4 years is ₹720. What is the rate per year? (a) 4% (b) 12% (c) 3% (d) 2%
37. 37.₹4500 is invested at 8% per year simple interest. What is the amount after 5 years? (a) ₹1800 (b) ₹4860 (c) ₹6300 (d) ₹6660
38. 38.What is the simple interest on ₹3500 at 3% per year for 5 years? (a) ₹630 (b) ₹525 (c) ₹4025 (d) ₹105
39. 39.In how many years will ₹10000 earn ₹400 simple interest at 2% per year? (a) 4 years (b) 2 years (c) 1 year (d) 3 years
40. 40.What is the simple interest on ₹6000 at 11% per year for 5 years? (a) ₹660 (b) ₹9300 (c) ₹3960 (d) ₹3300

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