Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 225 · 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 ₹3000 earn ₹1320 simple interest at 11% per year? (a) 8 years (b) 4 years (c) 5 years (d) 3 years
2. 2.The simple interest on ₹2500 for 5 years is ₹750. What is the rate per year? (a) 30% (b) 7% (c) 5% (d) 6%
3. 3.In how many years will ₹4000 earn ₹240 simple interest at 3% per year? (a) 4 years (b) 1 year (c) 2 years (d) 3 years
4. 4.The simple interest on ₹4500 for 2 years is ₹900. What is the rate per year? (a) 11% (b) 9% (c) 20% (d) 10%
5. 5.The simple interest on ₹3000 for 4 years is ₹720. What is the rate per year? (a) 24% (b) 5% (c) 6% (d) 7%
6. 6.₹1500 is invested at 7% per year simple interest. What is the amount after 4 years? (a) ₹1920 (b) ₹1605 (c) ₹2025 (d) ₹420
7. 7.What is the simple interest on ₹4000 at 8% per year for 2 years? (a) ₹320 (b) ₹4640 (c) ₹960 (d) ₹640
8. 8.In how many years will ₹4000 earn ₹560 simple interest at 7% per year? (a) 3 years (b) 4 years (c) 1 year (d) 2 years
9. 9.In how many years will ₹3000 earn ₹300 simple interest at 2% per year? (a) 4 years (b) 6 years (c) 5 years (d) 10 years
10. 10.The simple interest on ₹3500 for 4 years is ₹700. What is the rate per year? (a) 4% (b) 5% (c) 6% (d) 20%
11. 11.The simple interest on ₹1000 for 4 years is ₹200. What is the rate per year? (a) 6% (b) 5% (c) 4% (d) 20%
12. 12.₹9000 is invested at 11% per year simple interest. What is the amount after 4 years? (a) ₹12960 (b) ₹9990 (c) ₹13950 (d) ₹3960
13. 13.What is the simple interest on ₹3500 at 9% per year for 4 years? (a) ₹1575 (b) ₹4760 (c) ₹315 (d) ₹1260
14. 14.₹8500 is invested at 6% per year simple interest. What is the amount after 3 years? (a) ₹10540 (b) ₹1530 (c) ₹9010 (d) ₹10030
15. 15.₹1000 is invested at 2% per year simple interest. What is the amount after 5 years? (a) ₹100 (b) ₹1020 (c) ₹1120 (d) ₹1100
16. 16.The simple interest on ₹9500 for 4 years is ₹3420. What is the rate per year? (a) 8% (b) 10% (c) 36% (d) 9%
17. 17.The simple interest on ₹8000 for 4 years is ₹1600. What is the rate per year? (a) 6% (b) 4% (c) 20% (d) 5%
18. 18.₹6000 is invested at 10% per year simple interest. What is the amount after 4 years? (a) ₹2400 (b) ₹9000 (c) ₹6600 (d) ₹8400
19. 19.The simple interest on ₹3000 for 5 years is ₹750. What is the rate per year? (a) 6% (b) 4% (c) 25% (d) 5%
20. 20.What is the simple interest on ₹3500 at 2% per year for 2 years? (a) ₹3640 (b) ₹70 (c) ₹140 (d) ₹210
21. 21.In how many years will ₹5500 earn ₹330 simple interest at 2% per year? (a) 3 years (b) 2 years (c) 6 years (d) 4 years
22. 22.The simple interest on ₹4500 for 3 years is ₹540. What is the rate per year? (a) 4% (b) 3% (c) 5% (d) 12%
23. 23.₹5500 is invested at 2% per year simple interest. What is the amount after 4 years? (a) ₹440 (b) ₹6050 (c) ₹5940 (d) ₹5610
24. 24.₹8500 is invested at 7% per year simple interest. What is the amount after 2 years? (a) ₹10285 (b) ₹9690 (c) ₹9095 (d) ₹1190
25. 25.₹3000 is invested at 3% per year simple interest. What is the amount after 3 years? (a) ₹270 (b) ₹3090 (c) ₹3270 (d) ₹3360
26. 26.What is the simple interest on ₹9000 at 9% per year for 3 years? (a) ₹11430 (b) ₹810 (c) ₹2430 (d) ₹3240
27. 27.The simple interest on ₹4500 for 2 years is ₹720. What is the rate per year? (a) 7% (b) 16% (c) 8% (d) 9%
28. 28.In how many years will ₹5500 earn ₹1485 simple interest at 9% per year? (a) 2 years (b) 6 years (c) 4 years (d) 3 years
29. 29.In how many years will ₹5000 earn ₹3000 simple interest at 12% per year? (a) 4 years (b) 10 years (c) 5 years (d) 6 years
30. 30.₹5500 is invested at 6% per year simple interest. What is the amount after 2 years? (a) ₹5830 (b) ₹6490 (c) ₹6160 (d) ₹660
31. 31.What is the simple interest on ₹2500 at 6% per year for 3 years? (a) ₹150 (b) ₹2950 (c) ₹600 (d) ₹450
32. 32.In how many years will ₹8000 earn ₹1280 simple interest at 4% per year? (a) 8 years (b) 3 years (c) 5 years (d) 4 years
33. 33.₹10000 is invested at 5% per year simple interest. What is the amount after 3 years? (a) ₹10500 (b) ₹11500 (c) ₹12000 (d) ₹1500
34. 34.The simple interest on ₹3500 for 3 years is ₹315. What is the rate per year? (a) 4% (b) 9% (c) 2% (d) 3%
35. 35.In how many years will ₹8500 earn ₹2720 simple interest at 8% per year? (a) 4 years (b) 5 years (c) 3 years (d) 8 years
36. 36.₹3000 is invested at 12% per year simple interest. What is the amount after 2 years? (a) ₹3360 (b) ₹720 (c) ₹3720 (d) ₹4080
37. 37.What is the simple interest on ₹3000 at 2% per year for 4 years? (a) ₹240 (b) ₹300 (c) ₹3240 (d) ₹60
38. 38.The simple interest on ₹8500 for 5 years is ₹3825. What is the rate per year? (a) 10% (b) 45% (c) 8% (d) 9%
39. 39.The simple interest on ₹8000 for 2 years is ₹1280. What is the rate per year? (a) 16% (b) 9% (c) 7% (d) 8%
40. 40.What is the simple interest on ₹3500 at 9% per year for 2 years? (a) ₹4130 (b) ₹315 (c) ₹630 (d) ₹945

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