Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 421 · 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.₹5500 is invested at 6% per year simple interest. What is the amount after 4 years? (a) ₹6820 (b) ₹7150 (c) ₹1320 (d) ₹5830
2. 2.The simple interest on ₹4000 for 3 years is ₹600. What is the rate per year? (a) 4% (b) 5% (c) 15% (d) 6%
3. 3.The simple interest on ₹6500 for 5 years is ₹1625. What is the rate per year? (a) 4% (b) 25% (c) 5% (d) 6%
4. 4.The simple interest on ₹6500 for 2 years is ₹1430. What is the rate per year? (a) 12% (b) 10% (c) 22% (d) 11%
5. 5.₹7500 is invested at 6% per year simple interest. What is the amount after 2 years? (a) ₹900 (b) ₹7950 (c) ₹8400 (d) ₹8850
6. 6.The simple interest on ₹7500 for 4 years is ₹3300. What is the rate per year? (a) 44% (b) 12% (c) 10% (d) 11%
7. 7.What is the simple interest on ₹1000 at 11% per year for 5 years? (a) ₹660 (b) ₹550 (c) ₹110 (d) ₹1550
8. 8.₹2500 is invested at 7% per year simple interest. What is the amount after 2 years? (a) ₹350 (b) ₹2850 (c) ₹2675 (d) ₹3025
9. 9.₹3500 is invested at 6% per year simple interest. What is the amount after 5 years? (a) ₹1050 (b) ₹4550 (c) ₹3710 (d) ₹4760
10. 10.What is the simple interest on ₹4000 at 5% per year for 5 years? (a) ₹1000 (b) ₹1200 (c) ₹5000 (d) ₹200
11. 11.In how many years will ₹3000 earn ₹420 simple interest at 7% per year? (a) 2 years (b) 1 year (c) 3 years (d) 4 years
12. 12.What is the simple interest on ₹2000 at 4% per year for 4 years? (a) ₹400 (b) ₹320 (c) ₹80 (d) ₹2320
13. 13.In how many years will ₹2500 earn ₹225 simple interest at 3% per year? (a) 2 years (b) 3 years (c) 6 years (d) 4 years
14. 14.In how many years will ₹10000 earn ₹2000 simple interest at 4% per year? (a) 6 years (b) 4 years (c) 5 years (d) 10 years
15. 15.What is the simple interest on ₹6500 at 7% per year for 3 years? (a) ₹1365 (b) ₹455 (c) ₹7865 (d) ₹1820
16. 16.The simple interest on ₹7000 for 3 years is ₹630. What is the rate per year? (a) 9% (b) 4% (c) 2% (d) 3%
17. 17.In how many years will ₹2000 earn ₹200 simple interest at 2% per year? (a) 10 years (b) 5 years (c) 6 years (d) 4 years
18. 18.In how many years will ₹3500 earn ₹315 simple interest at 3% per year? (a) 3 years (b) 4 years (c) 2 years (d) 6 years
19. 19.The simple interest on ₹4000 for 4 years is ₹1760. What is the rate per year? (a) 44% (b) 10% (c) 12% (d) 11%
20. 20.The simple interest on ₹7000 for 5 years is ₹1400. What is the rate per year? (a) 4% (b) 3% (c) 20% (d) 5%
21. 21.The simple interest on ₹2500 for 5 years is ₹1000. What is the rate per year? (a) 9% (b) 40% (c) 8% (d) 7%
22. 22.The simple interest on ₹8500 for 5 years is ₹3825. What is the rate per year? (a) 8% (b) 45% (c) 9% (d) 10%
23. 23.In how many years will ₹5000 earn ₹2750 simple interest at 11% per year? (a) 6 years (b) 10 years (c) 4 years (d) 5 years
24. 24.In how many years will ₹8000 earn ₹2880 simple interest at 9% per year? (a) 8 years (b) 5 years (c) 3 years (d) 4 years
25. 25.In how many years will ₹7500 earn ₹1575 simple interest at 7% per year? (a) 6 years (b) 4 years (c) 2 years (d) 3 years
26. 26.The simple interest on ₹6500 for 4 years is ₹2860. What is the rate per year? (a) 44% (b) 12% (c) 10% (d) 11%
27. 27.₹5500 is invested at 6% per year simple interest. What is the amount after 3 years? (a) ₹6820 (b) ₹990 (c) ₹5830 (d) ₹6490
28. 28.₹10000 is invested at 9% per year simple interest. What is the amount after 2 years? (a) ₹12700 (b) ₹10900 (c) ₹11800 (d) ₹1800
29. 29.What is the simple interest on ₹9500 at 9% per year for 3 years? (a) ₹12065 (b) ₹2565 (c) ₹855 (d) ₹3420
30. 30.The simple interest on ₹3000 for 3 years is ₹720. What is the rate per year? (a) 7% (b) 8% (c) 9% (d) 24%
31. 31.The simple interest on ₹6500 for 2 years is ₹1560. What is the rate per year? (a) 11% (b) 24% (c) 13% (d) 12%
32. 32.The simple interest on ₹1500 for 2 years is ₹270. What is the rate per year? (a) 18% (b) 10% (c) 9% (d) 8%
33. 33.The simple interest on ₹1500 for 3 years is ₹180. What is the rate per year? (a) 12% (b) 4% (c) 3% (d) 5%
34. 34.In how many years will ₹3000 earn ₹300 simple interest at 2% per year? (a) 5 years (b) 4 years (c) 6 years (d) 10 years
35. 35.What is the simple interest on ₹2500 at 2% per year for 2 years? (a) ₹150 (b) ₹100 (c) ₹50 (d) ₹2600
36. 36.In how many years will ₹5000 earn ₹600 simple interest at 6% per year? (a) 3 years (b) 1 year (c) 4 years (d) 2 years
37. 37.What is the simple interest on ₹7500 at 11% per year for 3 years? (a) ₹825 (b) ₹9975 (c) ₹3300 (d) ₹2475
38. 38.₹7000 is invested at 4% per year simple interest. What is the amount after 4 years? (a) ₹7280 (b) ₹1120 (c) ₹8120 (d) ₹8400
39. 39.In how many years will ₹7000 earn ₹420 simple interest at 3% per year? (a) 1 year (b) 3 years (c) 4 years (d) 2 years
40. 40.What is the simple interest on ₹8000 at 12% per year for 2 years? (a) ₹1920 (b) ₹960 (c) ₹2880 (d) ₹9920

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