Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 641 · 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 ₹10000 at 8% per year for 4 years? (a) ₹3200 (b) ₹13200 (c) ₹4000 (d) ₹800
2. 2.The simple interest on ₹4000 for 5 years is ₹1200. What is the rate per year? (a) 6% (b) 30% (c) 7% (d) 5%
3. 3.The simple interest on ₹9000 for 3 years is ₹2970. What is the rate per year? (a) 12% (b) 11% (c) 10% (d) 33%
4. 4.What is the simple interest on ₹1500 at 12% per year for 2 years? (a) ₹180 (b) ₹360 (c) ₹1860 (d) ₹540
5. 5.₹2500 is invested at 3% per year simple interest. What is the amount after 4 years? (a) ₹300 (b) ₹2800 (c) ₹2875 (d) ₹2575
6. 6.In how many years will ₹4000 earn ₹1760 simple interest at 11% per year? (a) 5 years (b) 3 years (c) 4 years (d) 8 years
7. 7.The simple interest on ₹6000 for 2 years is ₹360. What is the rate per year? (a) 4% (b) 6% (c) 2% (d) 3%
8. 8.The simple interest on ₹1000 for 4 years is ₹80. What is the rate per year? (a) 8% (b) 2% (c) 3% (d) 1%
9. 9.₹5000 is invested at 3% per year simple interest. What is the amount after 4 years? (a) ₹5600 (b) ₹5150 (c) ₹600 (d) ₹5750
10. 10.The simple interest on ₹8500 for 4 years is ₹1020. What is the rate per year? (a) 12% (b) 3% (c) 2% (d) 4%
11. 11.In how many years will ₹1000 earn ₹120 simple interest at 3% per year? (a) 8 years (b) 4 years (c) 5 years (d) 3 years
12. 12.What is the simple interest on ₹3000 at 11% per year for 5 years? (a) ₹330 (b) ₹1650 (c) ₹4650 (d) ₹1980
13. 13.In how many years will ₹7500 earn ₹1875 simple interest at 5% per year? (a) 10 years (b) 6 years (c) 4 years (d) 5 years
14. 14.In how many years will ₹2000 earn ₹540 simple interest at 9% per year? (a) 4 years (b) 2 years (c) 3 years (d) 6 years
15. 15.What is the simple interest on ₹2500 at 7% per year for 2 years? (a) ₹525 (b) ₹2850 (c) ₹350 (d) ₹175
16. 16.In how many years will ₹7500 earn ₹900 simple interest at 6% per year? (a) 1 year (b) 4 years (c) 2 years (d) 3 years
17. 17.What is the simple interest on ₹2500 at 5% per year for 4 years? (a) ₹625 (b) ₹125 (c) ₹500 (d) ₹3000
18. 18.In how many years will ₹5000 earn ₹1000 simple interest at 4% per year? (a) 10 years (b) 6 years (c) 4 years (d) 5 years
19. 19.The simple interest on ₹8000 for 5 years is ₹1600. What is the rate per year? (a) 4% (b) 20% (c) 5% (d) 3%
20. 20.What is the simple interest on ₹5000 at 4% per year for 4 years? (a) ₹1000 (b) ₹5800 (c) ₹200 (d) ₹800
21. 21.In how many years will ₹7000 earn ₹2240 simple interest at 8% per year? (a) 5 years (b) 8 years (c) 4 years (d) 3 years
22. 22.What is the simple interest on ₹8500 at 5% per year for 3 years? (a) ₹1700 (b) ₹1275 (c) ₹9775 (d) ₹425
23. 23.In how many years will ₹4500 earn ₹1215 simple interest at 9% per year? (a) 2 years (b) 4 years (c) 6 years (d) 3 years
24. 24.₹2500 is invested at 9% per year simple interest. What is the amount after 5 years? (a) ₹3625 (b) ₹3850 (c) ₹1125 (d) ₹2725
25. 25.In how many years will ₹6000 earn ₹3300 simple interest at 11% per year? (a) 6 years (b) 4 years (c) 10 years (d) 5 years
26. 26.The simple interest on ₹8000 for 2 years is ₹1280. What is the rate per year? (a) 16% (b) 8% (c) 7% (d) 9%
27. 27.₹4500 is invested at 11% per year simple interest. What is the amount after 2 years? (a) ₹990 (b) ₹5490 (c) ₹4995 (d) ₹5985
28. 28.What is the simple interest on ₹7000 at 6% per year for 3 years? (a) ₹420 (b) ₹1260 (c) ₹8260 (d) ₹1680
29. 29.₹3500 is invested at 3% per year simple interest. What is the amount after 4 years? (a) ₹3920 (b) ₹4025 (c) ₹420 (d) ₹3605
30. 30.In how many years will ₹6500 earn ₹2340 simple interest at 12% per year? (a) 4 years (b) 2 years (c) 6 years (d) 3 years
31. 31.The simple interest on ₹9000 for 4 years is ₹1080. What is the rate per year? (a) 2% (b) 12% (c) 3% (d) 4%
32. 32.In how many years will ₹9500 earn ₹2660 simple interest at 7% per year? (a) 8 years (b) 4 years (c) 5 years (d) 3 years
33. 33.The simple interest on ₹3000 for 5 years is ₹1800. What is the rate per year? (a) 11% (b) 60% (c) 12% (d) 13%
34. 34.The simple interest on ₹2500 for 3 years is ₹750. What is the rate per year? (a) 9% (b) 10% (c) 30% (d) 11%
35. 35.In how many years will ₹1500 earn ₹120 simple interest at 2% per year? (a) 3 years (b) 5 years (c) 4 years (d) 8 years
36. 36.The simple interest on ₹6500 for 2 years is ₹1430. What is the rate per year? (a) 22% (b) 11% (c) 12% (d) 10%
37. 37.₹4000 is invested at 7% per year simple interest. What is the amount after 3 years? (a) ₹4280 (b) ₹5120 (c) ₹840 (d) ₹4840
38. 38.The simple interest on ₹6500 for 4 years is ₹2080. What is the rate per year? (a) 8% (b) 9% (c) 7% (d) 32%
39. 39.What is the simple interest on ₹8000 at 7% per year for 3 years? (a) ₹2240 (b) ₹1680 (c) ₹560 (d) ₹9680
40. 40.In how many years will ₹1500 earn ₹600 simple interest at 10% per year? (a) 3 years (b) 8 years (c) 4 years (d) 5 years

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