Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 913 · 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 ₹3000 for 4 years is ₹1440. What is the rate per year? (a) 11% (b) 48% (c) 13% (d) 12%
2. 2.What is the simple interest on ₹2000 at 10% per year for 4 years? (a) ₹200 (b) ₹2800 (c) ₹1000 (d) ₹800
3. 3.What is the simple interest on ₹6000 at 4% per year for 4 years? (a) ₹6960 (b) ₹240 (c) ₹960 (d) ₹1200
4. 4.The simple interest on ₹5500 for 5 years is ₹3025. What is the rate per year? (a) 55% (b) 12% (c) 11% (d) 10%
5. 5.What is the simple interest on ₹7000 at 8% per year for 4 years? (a) ₹9240 (b) ₹560 (c) ₹2800 (d) ₹2240
6. 6.What is the simple interest on ₹8500 at 8% per year for 5 years? (a) ₹680 (b) ₹11900 (c) ₹3400 (d) ₹4080
7. 7.₹8000 is invested at 12% per year simple interest. What is the amount after 4 years? (a) ₹3840 (b) ₹8960 (c) ₹11840 (d) ₹12800
8. 8.The simple interest on ₹4500 for 2 years is ₹270. What is the rate per year? (a) 2% (b) 6% (c) 3% (d) 4%
9. 9.₹3000 is invested at 10% per year simple interest. What is the amount after 3 years? (a) ₹3300 (b) ₹900 (c) ₹3900 (d) ₹4200
10. 10.What is the simple interest on ₹9000 at 4% per year for 2 years? (a) ₹9720 (b) ₹720 (c) ₹360 (d) ₹1080
11. 11.The simple interest on ₹10000 for 2 years is ₹600. What is the rate per year? (a) 6% (b) 3% (c) 4% (d) 2%
12. 12.₹10000 is invested at 11% per year simple interest. What is the amount after 4 years? (a) ₹11100 (b) ₹15500 (c) ₹4400 (d) ₹14400
13. 13.In how many years will ₹8500 earn ₹5100 simple interest at 12% per year? (a) 5 years (b) 10 years (c) 6 years (d) 4 years
14. 14.The simple interest on ₹1500 for 3 years is ₹180. What is the rate per year? (a) 3% (b) 5% (c) 4% (d) 12%
15. 15.In how many years will ₹10000 earn ₹3300 simple interest at 11% per year? (a) 6 years (b) 4 years (c) 3 years (d) 2 years
16. 16.₹3500 is invested at 9% per year simple interest. What is the amount after 5 years? (a) ₹5075 (b) ₹3815 (c) ₹1575 (d) ₹5390
17. 17.The simple interest on ₹1500 for 3 years is ₹495. What is the rate per year? (a) 12% (b) 10% (c) 33% (d) 11%
18. 18.₹5500 is invested at 10% per year simple interest. What is the amount after 5 years? (a) ₹8250 (b) ₹2750 (c) ₹6050 (d) ₹8800
19. 19.What is the simple interest on ₹10000 at 12% per year for 5 years? (a) ₹1200 (b) ₹7200 (c) ₹16000 (d) ₹6000
20. 20.In how many years will ₹10000 earn ₹1800 simple interest at 6% per year? (a) 4 years (b) 3 years (c) 6 years (d) 2 years
21. 21.The simple interest on ₹6000 for 2 years is ₹360. What is the rate per year? (a) 2% (b) 4% (c) 6% (d) 3%
22. 22.The simple interest on ₹9500 for 5 years is ₹3800. What is the rate per year? (a) 7% (b) 9% (c) 40% (d) 8%
23. 23.In how many years will ₹8000 earn ₹3200 simple interest at 10% per year? (a) 8 years (b) 3 years (c) 5 years (d) 4 years
24. 24.The simple interest on ₹3000 for 3 years is ₹900. What is the rate per year? (a) 11% (b) 9% (c) 30% (d) 10%
25. 25.The simple interest on ₹2500 for 3 years is ₹300. What is the rate per year? (a) 12% (b) 5% (c) 3% (d) 4%
26. 26.₹8000 is invested at 6% per year simple interest. What is the amount after 2 years? (a) ₹960 (b) ₹8480 (c) ₹8960 (d) ₹9440
27. 27.The simple interest on ₹5000 for 5 years is ₹750. What is the rate per year? (a) 3% (b) 15% (c) 2% (d) 4%
28. 28.In how many years will ₹1000 earn ₹120 simple interest at 6% per year? (a) 2 years (b) 3 years (c) 1 year (d) 4 years
29. 29.What is the simple interest on ₹9000 at 3% per year for 3 years? (a) ₹270 (b) ₹810 (c) ₹1080 (d) ₹9810
30. 30.In how many years will ₹2500 earn ₹600 simple interest at 12% per year? (a) 1 year (b) 3 years (c) 4 years (d) 2 years
31. 31.What is the simple interest on ₹3000 at 12% per year for 2 years? (a) ₹1080 (b) ₹3720 (c) ₹360 (d) ₹720
32. 32.What is the simple interest on ₹5500 at 7% per year for 2 years? (a) ₹1155 (b) ₹6270 (c) ₹385 (d) ₹770
33. 33.₹6000 is invested at 3% per year simple interest. What is the amount after 2 years? (a) ₹360 (b) ₹6540 (c) ₹6180 (d) ₹6360
34. 34.The simple interest on ₹3000 for 3 years is ₹450. What is the rate per year? (a) 6% (b) 15% (c) 4% (d) 5%
35. 35.The simple interest on ₹4000 for 4 years is ₹480. What is the rate per year? (a) 4% (b) 2% (c) 3% (d) 12%
36. 36.What is the simple interest on ₹5500 at 4% per year for 2 years? (a) ₹220 (b) ₹660 (c) ₹5940 (d) ₹440
37. 37.What is the simple interest on ₹1500 at 7% per year for 4 years? (a) ₹525 (b) ₹420 (c) ₹105 (d) ₹1920
38. 38.What is the simple interest on ₹5000 at 6% per year for 5 years? (a) ₹1800 (b) ₹1500 (c) ₹300 (d) ₹6500
39. 39.₹3000 is invested at 3% per year simple interest. What is the amount after 2 years? (a) ₹3090 (b) ₹3270 (c) ₹3180 (d) ₹180
40. 40.₹3000 is invested at 11% per year simple interest. What is the amount after 2 years? (a) ₹3330 (b) ₹3990 (c) ₹660 (d) ₹3660

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