Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 121 · 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 ₹5500 for 5 years is ₹1375. What is the rate per year? (a) 25% (b) 5% (c) 6% (d) 4%
2. 2.What is the simple interest on ₹5000 at 9% per year for 2 years? (a) ₹900 (b) ₹450 (c) ₹5900 (d) ₹1350
3. 3.In how many years will ₹6500 earn ₹2145 simple interest at 11% per year? (a) 6 years (b) 4 years (c) 2 years (d) 3 years
4. 4.In how many years will ₹3000 earn ₹450 simple interest at 3% per year? (a) 4 years (b) 5 years (c) 6 years (d) 10 years
5. 5.The simple interest on ₹8000 for 2 years is ₹1920. What is the rate per year? (a) 11% (b) 13% (c) 24% (d) 12%
6. 6.₹4000 is invested at 3% per year simple interest. What is the amount after 3 years? (a) ₹4120 (b) ₹360 (c) ₹4360 (d) ₹4480
7. 7.₹2000 is invested at 2% per year simple interest. What is the amount after 2 years? (a) ₹80 (b) ₹2120 (c) ₹2040 (d) ₹2080
8. 8.In how many years will ₹3500 earn ₹350 simple interest at 2% per year? (a) 10 years (b) 6 years (c) 5 years (d) 4 years
9. 9.The simple interest on ₹5500 for 5 years is ₹1100. What is the rate per year? (a) 3% (b) 4% (c) 5% (d) 20%
10. 10.In how many years will ₹7500 earn ₹3600 simple interest at 12% per year? (a) 3 years (b) 5 years (c) 8 years (d) 4 years
11. 11.What is the simple interest on ₹8500 at 11% per year for 5 years? (a) ₹935 (b) ₹13175 (c) ₹4675 (d) ₹5610
12. 12.What is the simple interest on ₹3000 at 7% per year for 3 years? (a) ₹840 (b) ₹3630 (c) ₹630 (d) ₹210
13. 13.₹2500 is invested at 12% per year simple interest. What is the amount after 4 years? (a) ₹4000 (b) ₹3700 (c) ₹2800 (d) ₹1200
14. 14.What is the simple interest on ₹10000 at 11% per year for 4 years? (a) ₹4400 (b) ₹1100 (c) ₹14400 (d) ₹5500
15. 15.What is the simple interest on ₹10000 at 3% per year for 4 years? (a) ₹1500 (b) ₹1200 (c) ₹300 (d) ₹11200
16. 16.₹10000 is invested at 6% per year simple interest. What is the amount after 2 years? (a) ₹10600 (b) ₹11800 (c) ₹1200 (d) ₹11200
17. 17.What is the simple interest on ₹3500 at 8% per year for 2 years? (a) ₹560 (b) ₹840 (c) ₹280 (d) ₹4060
18. 18.In how many years will ₹4500 earn ₹180 simple interest at 2% per year? (a) 3 years (b) 4 years (c) 1 year (d) 2 years
19. 19.The simple interest on ₹6500 for 3 years is ₹1170. What is the rate per year? (a) 7% (b) 18% (c) 6% (d) 5%
20. 20.₹4500 is invested at 5% per year simple interest. What is the amount after 4 years? (a) ₹4725 (b) ₹5625 (c) ₹900 (d) ₹5400
21. 21.The simple interest on ₹1500 for 4 years is ₹600. What is the rate per year? (a) 40% (b) 10% (c) 9% (d) 11%
22. 22.₹8500 is invested at 4% per year simple interest. What is the amount after 4 years? (a) ₹1360 (b) ₹10200 (c) ₹8840 (d) ₹9860
23. 23.₹2500 is invested at 5% per year simple interest. What is the amount after 3 years? (a) ₹2875 (b) ₹375 (c) ₹2625 (d) ₹3000
24. 24.₹9000 is invested at 10% per year simple interest. What is the amount after 2 years? (a) ₹9900 (b) ₹10800 (c) ₹1800 (d) ₹11700
25. 25.What is the simple interest on ₹1500 at 5% per year for 5 years? (a) ₹1875 (b) ₹375 (c) ₹450 (d) ₹75
26. 26.What is the simple interest on ₹8000 at 7% per year for 3 years? (a) ₹2240 (b) ₹560 (c) ₹1680 (d) ₹9680
27. 27.The simple interest on ₹10000 for 2 years is ₹2400. What is the rate per year? (a) 13% (b) 12% (c) 24% (d) 11%
28. 28.₹1000 is invested at 6% per year simple interest. What is the amount after 3 years? (a) ₹1240 (b) ₹1060 (c) ₹1180 (d) ₹180
29. 29.The simple interest on ₹8000 for 2 years is ₹640. What is the rate per year? (a) 8% (b) 5% (c) 3% (d) 4%
30. 30.₹4000 is invested at 4% per year simple interest. What is the amount after 4 years? (a) ₹640 (b) ₹4800 (c) ₹4160 (d) ₹4640
31. 31.What is the simple interest on ₹3000 at 11% per year for 2 years? (a) ₹990 (b) ₹330 (c) ₹3660 (d) ₹660
32. 32.The simple interest on ₹4000 for 5 years is ₹800. What is the rate per year? (a) 20% (b) 5% (c) 3% (d) 4%
33. 33.The simple interest on ₹7500 for 3 years is ₹2250. What is the rate per year? (a) 30% (b) 10% (c) 11% (d) 9%
34. 34.₹7000 is invested at 9% per year simple interest. What is the amount after 5 years? (a) ₹10780 (b) ₹3150 (c) ₹10150 (d) ₹7630
35. 35.The simple interest on ₹9000 for 3 years is ₹2700. What is the rate per year? (a) 30% (b) 11% (c) 9% (d) 10%
36. 36.The simple interest on ₹4500 for 3 years is ₹270. What is the rate per year? (a) 3% (b) 2% (c) 1% (d) 6%
37. 37.The simple interest on ₹3500 for 2 years is ₹770. What is the rate per year? (a) 10% (b) 22% (c) 11% (d) 12%
38. 38.The simple interest on ₹1000 for 2 years is ₹40. What is the rate per year? (a) 4% (b) 1% (c) 2% (d) 3%
39. 39.The simple interest on ₹7500 for 4 years is ₹600. What is the rate per year? (a) 1% (b) 8% (c) 2% (d) 3%
40. 40.In how many years will ₹5500 earn ₹330 simple interest at 3% per year? (a) 3 years (b) 2 years (c) 1 year (d) 4 years

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