Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 325 · 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.What is the simple interest on ₹1000 at 3% per year for 3 years? (a) ₹30 (b) ₹120 (c) ₹1090 (d) ₹90
2. 2.What is the simple interest on ₹9000 at 12% per year for 2 years? (a) ₹2160 (b) ₹1080 (c) ₹3240 (d) ₹11160
3. 3.₹9000 is invested at 9% per year simple interest. What is the amount after 5 years? (a) ₹13050 (b) ₹9810 (c) ₹13860 (d) ₹4050
4. 4.₹5500 is invested at 10% per year simple interest. What is the amount after 3 years? (a) ₹7700 (b) ₹1650 (c) ₹7150 (d) ₹6050
5. 5.The simple interest on ₹1500 for 4 years is ₹600. What is the rate per year? (a) 10% (b) 40% (c) 9% (d) 11%
6. 6.What is the simple interest on ₹7500 at 3% per year for 5 years? (a) ₹1350 (b) ₹225 (c) ₹8625 (d) ₹1125
7. 7.What is the simple interest on ₹2500 at 3% per year for 4 years? (a) ₹375 (b) ₹300 (c) ₹75 (d) ₹2800
8. 8.The simple interest on ₹1500 for 2 years is ₹60. What is the rate per year? (a) 2% (b) 3% (c) 4% (d) 1%
9. 9.In how many years will ₹8000 earn ₹1920 simple interest at 6% per year? (a) 4 years (b) 5 years (c) 8 years (d) 3 years
10. 10.What is the simple interest on ₹3500 at 2% per year for 4 years? (a) ₹70 (b) ₹350 (c) ₹280 (d) ₹3780
11. 11.₹9500 is invested at 8% per year simple interest. What is the amount after 2 years? (a) ₹10260 (b) ₹1520 (c) ₹11780 (d) ₹11020
12. 12.In how many years will ₹10000 earn ₹3600 simple interest at 9% per year? (a) 3 years (b) 8 years (c) 5 years (d) 4 years
13. 13.₹6500 is invested at 9% per year simple interest. What is the amount after 3 years? (a) ₹8255 (b) ₹7085 (c) ₹1755 (d) ₹8840
14. 14.The simple interest on ₹3500 for 4 years is ₹1540. What is the rate per year? (a) 12% (b) 44% (c) 10% (d) 11%
15. 15.In how many years will ₹9000 earn ₹810 simple interest at 3% per year? (a) 4 years (b) 2 years (c) 6 years (d) 3 years
16. 16.What is the simple interest on ₹5500 at 5% per year for 5 years? (a) ₹1375 (b) ₹6875 (c) ₹1650 (d) ₹275
17. 17.₹4000 is invested at 4% per year simple interest. What is the amount after 3 years? (a) ₹4480 (b) ₹4640 (c) ₹4160 (d) ₹480
18. 18.In how many years will ₹6500 earn ₹1300 simple interest at 4% per year? (a) 10 years (b) 5 years (c) 4 years (d) 6 years
19. 19.The simple interest on ₹10000 for 3 years is ₹600. What is the rate per year? (a) 1% (b) 6% (c) 3% (d) 2%
20. 20.The simple interest on ₹1000 for 2 years is ₹100. What is the rate per year? (a) 6% (b) 10% (c) 4% (d) 5%
21. 21.₹5000 is invested at 10% per year simple interest. What is the amount after 4 years? (a) ₹7000 (b) ₹7500 (c) ₹2000 (d) ₹5500
22. 22.₹2000 is invested at 9% per year simple interest. What is the amount after 3 years? (a) ₹540 (b) ₹2720 (c) ₹2540 (d) ₹2180
23. 23.In how many years will ₹8500 earn ₹1360 simple interest at 4% per year? (a) 3 years (b) 5 years (c) 8 years (d) 4 years
24. 24.In how many years will ₹1500 earn ₹675 simple interest at 9% per year? (a) 4 years (b) 10 years (c) 6 years (d) 5 years
25. 25.In how many years will ₹1000 earn ₹300 simple interest at 10% per year? (a) 6 years (b) 4 years (c) 2 years (d) 3 years
26. 26.In how many years will ₹5500 earn ₹660 simple interest at 3% per year? (a) 5 years (b) 8 years (c) 4 years (d) 3 years
27. 27.In how many years will ₹3500 earn ₹315 simple interest at 3% per year? (a) 4 years (b) 3 years (c) 2 years (d) 6 years
28. 28.₹3500 is invested at 3% per year simple interest. What is the amount after 5 years? (a) ₹4025 (b) ₹3605 (c) ₹4130 (d) ₹525
29. 29.₹3000 is invested at 12% per year simple interest. What is the amount after 5 years? (a) ₹4800 (b) ₹1800 (c) ₹3360 (d) ₹5160
30. 30.In how many years will ₹1500 earn ₹270 simple interest at 9% per year? (a) 1 year (b) 2 years (c) 3 years (d) 4 years
31. 31.What is the simple interest on ₹9000 at 5% per year for 5 years? (a) ₹2250 (b) ₹2700 (c) ₹11250 (d) ₹450
32. 32.In how many years will ₹8000 earn ₹1760 simple interest at 11% per year? (a) 3 years (b) 1 year (c) 2 years (d) 4 years
33. 33.In how many years will ₹4500 earn ₹1215 simple interest at 9% per year? (a) 4 years (b) 3 years (c) 2 years (d) 6 years
34. 34.In how many years will ₹2000 earn ₹480 simple interest at 6% per year? (a) 3 years (b) 5 years (c) 8 years (d) 4 years
35. 35.The simple interest on ₹10000 for 5 years is ₹2500. What is the rate per year? (a) 5% (b) 6% (c) 25% (d) 4%
36. 36.₹8500 is invested at 7% per year simple interest. What is the amount after 4 years? (a) ₹2380 (b) ₹9095 (c) ₹10880 (d) ₹11475
37. 37.In how many years will ₹2500 earn ₹500 simple interest at 5% per year? (a) 5 years (b) 4 years (c) 3 years (d) 8 years
38. 38.What is the simple interest on ₹9000 at 6% per year for 4 years? (a) ₹540 (b) ₹2700 (c) ₹2160 (d) ₹11160
39. 39.In how many years will ₹1000 earn ₹480 simple interest at 12% per year? (a) 8 years (b) 4 years (c) 3 years (d) 5 years
40. 40.What is the simple interest on ₹3500 at 8% per year for 2 years? (a) ₹4060 (b) ₹280 (c) ₹840 (d) ₹560

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