Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 919 · 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 ₹6500 earn ₹910 simple interest at 7% per year? (a) 3 years (b) 4 years (c) 1 year (d) 2 years
2. 2.The simple interest on ₹4500 for 4 years is ₹720. What is the rate per year? (a) 5% (b) 4% (c) 16% (d) 3%
3. 3.What is the simple interest on ₹9500 at 12% per year for 3 years? (a) ₹4560 (b) ₹3420 (c) ₹12920 (d) ₹1140
4. 4.The simple interest on ₹9500 for 5 years is ₹2375. What is the rate per year? (a) 25% (b) 6% (c) 4% (d) 5%
5. 5.In how many years will ₹9000 earn ₹1440 simple interest at 8% per year? (a) 2 years (b) 3 years (c) 4 years (d) 1 year
6. 6.In how many years will ₹2500 earn ₹400 simple interest at 8% per year? (a) 3 years (b) 1 year (c) 4 years (d) 2 years
7. 7.What is the simple interest on ₹4500 at 2% per year for 2 years? (a) ₹270 (b) ₹4680 (c) ₹90 (d) ₹180
8. 8.In how many years will ₹10000 earn ₹2000 simple interest at 5% per year? (a) 5 years (b) 3 years (c) 4 years (d) 8 years
9. 9.In how many years will ₹6000 earn ₹900 simple interest at 3% per year? (a) 6 years (b) 10 years (c) 5 years (d) 4 years
10. 10.The simple interest on ₹5500 for 2 years is ₹660. What is the rate per year? (a) 7% (b) 12% (c) 6% (d) 5%
11. 11.₹8500 is invested at 6% per year simple interest. What is the amount after 3 years? (a) ₹1530 (b) ₹9010 (c) ₹10030 (d) ₹10540
12. 12.₹8500 is invested at 6% per year simple interest. What is the amount after 2 years? (a) ₹9010 (b) ₹1020 (c) ₹9520 (d) ₹10030
13. 13.In how many years will ₹1000 earn ₹240 simple interest at 6% per year? (a) 4 years (b) 8 years (c) 3 years (d) 5 years
14. 14.₹10000 is invested at 7% per year simple interest. What is the amount after 3 years? (a) ₹2100 (b) ₹12100 (c) ₹12800 (d) ₹10700
15. 15.What is the simple interest on ₹8000 at 12% per year for 3 years? (a) ₹10880 (b) ₹3840 (c) ₹960 (d) ₹2880
16. 16.The simple interest on ₹4000 for 2 years is ₹800. What is the rate per year? (a) 11% (b) 9% (c) 20% (d) 10%
17. 17.The simple interest on ₹2500 for 3 years is ₹900. What is the rate per year? (a) 12% (b) 11% (c) 13% (d) 36%
18. 18.What is the simple interest on ₹9000 at 9% per year for 5 years? (a) ₹810 (b) ₹13050 (c) ₹4860 (d) ₹4050
19. 19.The simple interest on ₹4500 for 5 years is ₹1575. What is the rate per year? (a) 6% (b) 35% (c) 8% (d) 7%
20. 20.The simple interest on ₹7000 for 4 years is ₹1680. What is the rate per year? (a) 6% (b) 24% (c) 7% (d) 5%
21. 21.The simple interest on ₹2000 for 4 years is ₹880. What is the rate per year? (a) 10% (b) 11% (c) 12% (d) 44%
22. 22.In how many years will ₹2500 earn ₹375 simple interest at 3% per year? (a) 10 years (b) 4 years (c) 6 years (d) 5 years
23. 23.What is the simple interest on ₹2000 at 3% per year for 2 years? (a) ₹180 (b) ₹120 (c) ₹2120 (d) ₹60
24. 24.₹8500 is invested at 8% per year simple interest. What is the amount after 4 years? (a) ₹9180 (b) ₹2720 (c) ₹11900 (d) ₹11220
25. 25.The simple interest on ₹6000 for 4 years is ₹1440. What is the rate per year? (a) 7% (b) 24% (c) 6% (d) 5%
26. 26.What is the simple interest on ₹2000 at 11% per year for 2 years? (a) ₹440 (b) ₹2440 (c) ₹660 (d) ₹220
27. 27.In how many years will ₹3500 earn ₹350 simple interest at 5% per year? (a) 2 years (b) 4 years (c) 1 year (d) 3 years
28. 28.₹5000 is invested at 4% per year simple interest. What is the amount after 3 years? (a) ₹5800 (b) ₹5600 (c) ₹5200 (d) ₹600
29. 29.₹7500 is invested at 2% per year simple interest. What is the amount after 3 years? (a) ₹7950 (b) ₹7650 (c) ₹8100 (d) ₹450
30. 30.What is the simple interest on ₹9500 at 7% per year for 3 years? (a) ₹665 (b) ₹2660 (c) ₹1995 (d) ₹11495
31. 31.What is the simple interest on ₹4500 at 10% per year for 4 years? (a) ₹1800 (b) ₹450 (c) ₹6300 (d) ₹2250
32. 32.The simple interest on ₹9000 for 4 years is ₹2880. What is the rate per year? (a) 7% (b) 32% (c) 8% (d) 9%
33. 33.₹9500 is invested at 7% per year simple interest. What is the amount after 2 years? (a) ₹11495 (b) ₹1330 (c) ₹10165 (d) ₹10830
34. 34.₹6000 is invested at 2% per year simple interest. What is the amount after 3 years? (a) ₹6360 (b) ₹360 (c) ₹6480 (d) ₹6120
35. 35.What is the simple interest on ₹8000 at 9% per year for 3 years? (a) ₹10160 (b) ₹2160 (c) ₹720 (d) ₹2880
36. 36.What is the simple interest on ₹1000 at 10% per year for 3 years? (a) ₹300 (b) ₹1300 (c) ₹400 (d) ₹100
37. 37.The simple interest on ₹9500 for 5 years is ₹4275. What is the rate per year? (a) 9% (b) 45% (c) 10% (d) 8%
38. 38.What is the simple interest on ₹8000 at 11% per year for 4 years? (a) ₹11520 (b) ₹880 (c) ₹3520 (d) ₹4400
39. 39.₹6500 is invested at 10% per year simple interest. What is the amount after 3 years? (a) ₹7150 (b) ₹8450 (c) ₹9100 (d) ₹1950
40. 40.The simple interest on ₹4000 for 4 years is ₹1280. What is the rate per year? (a) 8% (b) 32% (c) 7% (d) 9%

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