Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 660 · 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.In how many years will ₹10000 earn ₹3500 simple interest at 7% per year? (a) 6 years (b) 4 years (c) 5 years (d) 10 years
2. 2.The simple interest on ₹1500 for 4 years is ₹120. What is the rate per year? (a) 8% (b) 1% (c) 3% (d) 2%
3. 3.₹5500 is invested at 10% per year simple interest. What is the amount after 3 years? (a) ₹7700 (b) ₹1650 (c) ₹7150 (d) ₹6050
4. 4.The simple interest on ₹4500 for 5 years is ₹450. What is the rate per year? (a) 10% (b) 3% (c) 1% (d) 2%
5. 5.₹5500 is invested at 8% per year simple interest. What is the amount after 2 years? (a) ₹5940 (b) ₹6820 (c) ₹880 (d) ₹6380
6. 6.What is the simple interest on ₹8000 at 3% per year for 3 years? (a) ₹8720 (b) ₹720 (c) ₹240 (d) ₹960
7. 7.In how many years will ₹9500 earn ₹4275 simple interest at 9% per year? (a) 10 years (b) 5 years (c) 4 years (d) 6 years
8. 8.₹6000 is invested at 4% per year simple interest. What is the amount after 2 years? (a) ₹6720 (b) ₹6240 (c) ₹6480 (d) ₹480
9. 9.What is the simple interest on ₹7000 at 3% per year for 4 years? (a) ₹840 (b) ₹7840 (c) ₹210 (d) ₹1050
10. 10.The simple interest on ₹7500 for 4 years is ₹3000. What is the rate per year? (a) 9% (b) 11% (c) 40% (d) 10%
11. 11.₹1000 is invested at 12% per year simple interest. What is the amount after 5 years? (a) ₹600 (b) ₹1600 (c) ₹1120 (d) ₹1720
12. 12.What is the simple interest on ₹2000 at 9% per year for 2 years? (a) ₹2360 (b) ₹180 (c) ₹540 (d) ₹360
13. 13.In how many years will ₹7000 earn ₹1680 simple interest at 12% per year? (a) 3 years (b) 1 year (c) 4 years (d) 2 years
14. 14.In how many years will ₹10000 earn ₹900 simple interest at 3% per year? (a) 2 years (b) 4 years (c) 6 years (d) 3 years
15. 15.What is the simple interest on ₹2000 at 12% per year for 2 years? (a) ₹2480 (b) ₹480 (c) ₹240 (d) ₹720
16. 16.In how many years will ₹10000 earn ₹3000 simple interest at 10% per year? (a) 4 years (b) 3 years (c) 2 years (d) 6 years
17. 17.What is the simple interest on ₹5500 at 2% per year for 2 years? (a) ₹110 (b) ₹5720 (c) ₹220 (d) ₹330
18. 18.In how many years will ₹5500 earn ₹1980 simple interest at 12% per year? (a) 6 years (b) 4 years (c) 3 years (d) 2 years
19. 19.₹4000 is invested at 4% per year simple interest. What is the amount after 3 years? (a) ₹480 (b) ₹4640 (c) ₹4480 (d) ₹4160
20. 20.The simple interest on ₹4000 for 3 years is ₹1080. What is the rate per year? (a) 9% (b) 10% (c) 27% (d) 8%
21. 21.What is the simple interest on ₹5500 at 2% per year for 3 years? (a) ₹5830 (b) ₹330 (c) ₹110 (d) ₹440
22. 22.The simple interest on ₹10000 for 3 years is ₹3300. What is the rate per year? (a) 12% (b) 11% (c) 10% (d) 33%
23. 23.The simple interest on ₹3500 for 2 years is ₹210. What is the rate per year? (a) 2% (b) 3% (c) 4% (d) 6%
24. 24.The simple interest on ₹5000 for 3 years is ₹450. What is the rate per year? (a) 4% (b) 2% (c) 9% (d) 3%
25. 25.In how many years will ₹3500 earn ₹525 simple interest at 5% per year? (a) 3 years (b) 6 years (c) 4 years (d) 2 years
26. 26.In how many years will ₹8500 earn ₹1020 simple interest at 4% per year? (a) 3 years (b) 6 years (c) 4 years (d) 2 years
27. 27.What is the simple interest on ₹9000 at 5% per year for 2 years? (a) ₹900 (b) ₹9900 (c) ₹450 (d) ₹1350
28. 28.In how many years will ₹5500 earn ₹440 simple interest at 4% per year? (a) 4 years (b) 1 year (c) 3 years (d) 2 years
29. 29.₹3000 is invested at 9% per year simple interest. What is the amount after 2 years? (a) ₹3270 (b) ₹3810 (c) ₹540 (d) ₹3540
30. 30.₹9000 is invested at 2% per year simple interest. What is the amount after 5 years? (a) ₹9180 (b) ₹900 (c) ₹10080 (d) ₹9900
31. 31.The simple interest on ₹3000 for 3 years is ₹360. What is the rate per year? (a) 5% (b) 4% (c) 12% (d) 3%
32. 32.₹9500 is invested at 2% per year simple interest. What is the amount after 4 years? (a) ₹760 (b) ₹10450 (c) ₹9690 (d) ₹10260
33. 33.What is the simple interest on ₹6500 at 8% per year for 4 years? (a) ₹2600 (b) ₹2080 (c) ₹520 (d) ₹8580
34. 34.In how many years will ₹8500 earn ₹2040 simple interest at 6% per year? (a) 5 years (b) 3 years (c) 4 years (d) 8 years
35. 35.The simple interest on ₹9000 for 4 years is ₹2880. What is the rate per year? (a) 32% (b) 7% (c) 9% (d) 8%
36. 36.What is the simple interest on ₹6500 at 9% per year for 3 years? (a) ₹8255 (b) ₹2340 (c) ₹1755 (d) ₹585
37. 37.₹3500 is invested at 3% per year simple interest. What is the amount after 3 years? (a) ₹3920 (b) ₹315 (c) ₹3815 (d) ₹3605
38. 38.The simple interest on ₹10000 for 2 years is ₹2000. What is the rate per year? (a) 10% (b) 11% (c) 9% (d) 20%
39. 39.What is the simple interest on ₹3000 at 3% per year for 5 years? (a) ₹450 (b) ₹90 (c) ₹540 (d) ₹3450
40. 40.₹1000 is invested at 6% per year simple interest. What is the amount after 2 years? (a) ₹1060 (b) ₹1120 (c) ₹120 (d) ₹1180

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