Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 454 · 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 ₹5500 for 2 years is ₹660. What is the rate per year? (a) 5% (b) 12% (c) 7% (d) 6%
2. 2.What is the simple interest on ₹10000 at 5% per year for 2 years? (a) ₹11000 (b) ₹500 (c) ₹1500 (d) ₹1000
3. 3.In how many years will ₹8500 earn ₹2805 simple interest at 11% per year? (a) 6 years (b) 3 years (c) 4 years (d) 2 years
4. 4.In how many years will ₹10000 earn ₹600 simple interest at 2% per year? (a) 2 years (b) 6 years (c) 4 years (d) 3 years
5. 5.₹3500 is invested at 4% per year simple interest. What is the amount after 2 years? (a) ₹3640 (b) ₹280 (c) ₹3920 (d) ₹3780
6. 6.In how many years will ₹9500 earn ₹3800 simple interest at 8% per year? (a) 6 years (b) 5 years (c) 4 years (d) 10 years
7. 7.₹8500 is invested at 3% per year simple interest. What is the amount after 4 years? (a) ₹1020 (b) ₹8755 (c) ₹9775 (d) ₹9520
8. 8.The simple interest on ₹1500 for 5 years is ₹225. What is the rate per year? (a) 4% (b) 3% (c) 2% (d) 15%
9. 9.The simple interest on ₹10000 for 3 years is ₹2400. What is the rate per year? (a) 9% (b) 8% (c) 24% (d) 7%
10. 10.The simple interest on ₹4500 for 4 years is ₹1800. What is the rate per year? (a) 40% (b) 11% (c) 9% (d) 10%
11. 11.₹9000 is invested at 10% per year simple interest. What is the amount after 4 years? (a) ₹13500 (b) ₹12600 (c) ₹9900 (d) ₹3600
12. 12.In how many years will ₹3000 earn ₹360 simple interest at 6% per year? (a) 4 years (b) 1 year (c) 3 years (d) 2 years
13. 13.₹1000 is invested at 3% per year simple interest. What is the amount after 3 years? (a) ₹90 (b) ₹1090 (c) ₹1120 (d) ₹1030
14. 14.The simple interest on ₹4500 for 5 years is ₹675. What is the rate per year? (a) 3% (b) 4% (c) 2% (d) 15%
15. 15.What is the simple interest on ₹4500 at 3% per year for 4 years? (a) ₹135 (b) ₹540 (c) ₹675 (d) ₹5040
16. 16.The simple interest on ₹10000 for 5 years is ₹4500. What is the rate per year? (a) 9% (b) 45% (c) 8% (d) 10%
17. 17.In how many years will ₹9500 earn ₹3135 simple interest at 11% per year? (a) 4 years (b) 2 years (c) 3 years (d) 6 years
18. 18.₹7500 is invested at 11% per year simple interest. What is the amount after 5 years? (a) ₹11625 (b) ₹8325 (c) ₹12450 (d) ₹4125
19. 19.The simple interest on ₹4000 for 4 years is ₹1600. What is the rate per year? (a) 10% (b) 40% (c) 11% (d) 9%
20. 20.₹2000 is invested at 12% per year simple interest. What is the amount after 2 years? (a) ₹2720 (b) ₹480 (c) ₹2480 (d) ₹2240
21. 21.The simple interest on ₹6500 for 3 years is ₹1560. What is the rate per year? (a) 7% (b) 24% (c) 9% (d) 8%
22. 22.The simple interest on ₹6000 for 4 years is ₹2880. What is the rate per year? (a) 11% (b) 12% (c) 13% (d) 48%
23. 23.₹10000 is invested at 6% per year simple interest. What is the amount after 2 years? (a) ₹11800 (b) ₹11200 (c) ₹1200 (d) ₹10600
24. 24.₹4000 is invested at 4% per year simple interest. What is the amount after 3 years? (a) ₹4160 (b) ₹4480 (c) ₹4640 (d) ₹480
25. 25.In how many years will ₹1000 earn ₹300 simple interest at 10% per year? (a) 2 years (b) 3 years (c) 4 years (d) 6 years
26. 26.₹10000 is invested at 9% per year simple interest. What is the amount after 2 years? (a) ₹12700 (b) ₹11800 (c) ₹1800 (d) ₹10900
27. 27.What is the simple interest on ₹9500 at 3% per year for 4 years? (a) ₹1425 (b) ₹285 (c) ₹10640 (d) ₹1140
28. 28.The simple interest on ₹2000 for 3 years is ₹540. What is the rate per year? (a) 10% (b) 9% (c) 27% (d) 8%
29. 29.In how many years will ₹9000 earn ₹2700 simple interest at 10% per year? (a) 6 years (b) 4 years (c) 2 years (d) 3 years
30. 30.The simple interest on ₹3000 for 5 years is ₹450. What is the rate per year? (a) 2% (b) 3% (c) 15% (d) 4%
31. 31.The simple interest on ₹7500 for 5 years is ₹1125. What is the rate per year? (a) 15% (b) 2% (c) 3% (d) 4%
32. 32.The simple interest on ₹6000 for 3 years is ₹900. What is the rate per year? (a) 15% (b) 6% (c) 5% (d) 4%
33. 33.What is the simple interest on ₹3000 at 5% per year for 5 years? (a) ₹3750 (b) ₹150 (c) ₹900 (d) ₹750
34. 34.₹7000 is invested at 7% per year simple interest. What is the amount after 3 years? (a) ₹8470 (b) ₹7490 (c) ₹8960 (d) ₹1470
35. 35.₹5000 is invested at 12% per year simple interest. What is the amount after 3 years? (a) ₹6800 (b) ₹5600 (c) ₹1800 (d) ₹7400
36. 36.₹2500 is invested at 11% per year simple interest. What is the amount after 2 years? (a) ₹2775 (b) ₹3050 (c) ₹3325 (d) ₹550
37. 37.What is the simple interest on ₹8000 at 8% per year for 3 years? (a) ₹640 (b) ₹1920 (c) ₹2560 (d) ₹9920
38. 38.The simple interest on ₹3500 for 4 years is ₹1260. What is the rate per year? (a) 9% (b) 8% (c) 10% (d) 36%
39. 39.What is the simple interest on ₹1000 at 5% per year for 4 years? (a) ₹1200 (b) ₹200 (c) ₹50 (d) ₹250
40. 40.₹6000 is invested at 12% per year simple interest. What is the amount after 3 years? (a) ₹8880 (b) ₹2160 (c) ₹8160 (d) ₹6720

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