Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 842 · 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 ₹8000 earn ₹1600 simple interest at 5% per year? (a) 8 years (b) 4 years (c) 3 years (d) 5 years
2. 2.In how many years will ₹1500 earn ₹360 simple interest at 12% per year? (a) 1 year (b) 3 years (c) 4 years (d) 2 years
3. 3.What is the simple interest on ₹8500 at 5% per year for 5 years? (a) ₹425 (b) ₹2125 (c) ₹2550 (d) ₹10625
4. 4.₹9000 is invested at 5% per year simple interest. What is the amount after 4 years? (a) ₹11250 (b) ₹1800 (c) ₹10800 (d) ₹9450
5. 5.The simple interest on ₹2500 for 2 years is ₹350. What is the rate per year? (a) 6% (b) 8% (c) 7% (d) 14%
6. 6.In how many years will ₹8000 earn ₹640 simple interest at 4% per year? (a) 2 years (b) 1 year (c) 3 years (d) 4 years
7. 7.₹4000 is invested at 6% per year simple interest. What is the amount after 2 years? (a) ₹4720 (b) ₹4240 (c) ₹4480 (d) ₹480
8. 8.In how many years will ₹9000 earn ₹4320 simple interest at 12% per year? (a) 5 years (b) 3 years (c) 4 years (d) 8 years
9. 9.The simple interest on ₹3500 for 5 years is ₹700. What is the rate per year? (a) 4% (b) 3% (c) 5% (d) 20%
10. 10.In how many years will ₹4000 earn ₹1440 simple interest at 9% per year? (a) 8 years (b) 3 years (c) 4 years (d) 5 years
11. 11.The simple interest on ₹6500 for 3 years is ₹585. What is the rate per year? (a) 3% (b) 2% (c) 4% (d) 9%
12. 12.The simple interest on ₹3500 for 5 years is ₹875. What is the rate per year? (a) 25% (b) 4% (c) 6% (d) 5%
13. 13.What is the simple interest on ₹5000 at 4% per year for 3 years? (a) ₹200 (b) ₹600 (c) ₹5600 (d) ₹800
14. 14.What is the simple interest on ₹1500 at 12% per year for 3 years? (a) ₹720 (b) ₹540 (c) ₹2040 (d) ₹180
15. 15.The simple interest on ₹1500 for 4 years is ₹660. What is the rate per year? (a) 10% (b) 12% (c) 11% (d) 44%
16. 16.₹7500 is invested at 4% per year simple interest. What is the amount after 5 years? (a) ₹1500 (b) ₹9000 (c) ₹9300 (d) ₹7800
17. 17.The simple interest on ₹8500 for 5 years is ₹5100. What is the rate per year? (a) 11% (b) 13% (c) 12% (d) 60%
18. 18.In how many years will ₹8500 earn ₹1020 simple interest at 6% per year? (a) 1 year (b) 3 years (c) 2 years (d) 4 years
19. 19.The simple interest on ₹8000 for 2 years is ₹800. What is the rate per year? (a) 10% (b) 6% (c) 5% (d) 4%
20. 20.The simple interest on ₹3000 for 4 years is ₹600. What is the rate per year? (a) 20% (b) 6% (c) 5% (d) 4%
21. 21.₹5000 is invested at 2% per year simple interest. What is the amount after 4 years? (a) ₹5100 (b) ₹400 (c) ₹5500 (d) ₹5400
22. 22.What is the simple interest on ₹4000 at 10% per year for 4 years? (a) ₹5600 (b) ₹1600 (c) ₹400 (d) ₹2000
23. 23.The simple interest on ₹7500 for 4 years is ₹3300. What is the rate per year? (a) 44% (b) 10% (c) 12% (d) 11%
24. 24.The simple interest on ₹6500 for 5 years is ₹3250. What is the rate per year? (a) 10% (b) 9% (c) 50% (d) 11%
25. 25.What is the simple interest on ₹8000 at 7% per year for 3 years? (a) ₹560 (b) ₹9680 (c) ₹1680 (d) ₹2240
26. 26.₹6500 is invested at 6% per year simple interest. What is the amount after 5 years? (a) ₹6890 (b) ₹8450 (c) ₹8840 (d) ₹1950
27. 27.₹2000 is invested at 5% per year simple interest. What is the amount after 4 years? (a) ₹400 (b) ₹2500 (c) ₹2100 (d) ₹2400
28. 28.In how many years will ₹10000 earn ₹1500 simple interest at 5% per year? (a) 4 years (b) 6 years (c) 2 years (d) 3 years
29. 29.₹6500 is invested at 3% per year simple interest. What is the amount after 3 years? (a) ₹6695 (b) ₹7280 (c) ₹585 (d) ₹7085
30. 30.The simple interest on ₹2000 for 3 years is ₹720. What is the rate per year? (a) 12% (b) 36% (c) 13% (d) 11%
31. 31.₹10000 is invested at 9% per year simple interest. What is the amount after 3 years? (a) ₹10900 (b) ₹12700 (c) ₹2700 (d) ₹13600
32. 32.In how many years will ₹2500 earn ₹250 simple interest at 2% per year? (a) 4 years (b) 6 years (c) 10 years (d) 5 years
33. 33.₹9000 is invested at 4% per year simple interest. What is the amount after 3 years? (a) ₹9360 (b) ₹1080 (c) ₹10440 (d) ₹10080
34. 34.₹3000 is invested at 8% per year simple interest. What is the amount after 5 years? (a) ₹4200 (b) ₹3240 (c) ₹1200 (d) ₹4440
35. 35.In how many years will ₹3000 earn ₹1800 simple interest at 12% per year? (a) 4 years (b) 10 years (c) 6 years (d) 5 years
36. 36.₹2500 is invested at 10% per year simple interest. What is the amount after 5 years? (a) ₹4000 (b) ₹1250 (c) ₹2750 (d) ₹3750
37. 37.₹4500 is invested at 7% per year simple interest. What is the amount after 5 years? (a) ₹1575 (b) ₹6075 (c) ₹6390 (d) ₹4815
38. 38.The simple interest on ₹4000 for 3 years is ₹240. What is the rate per year? (a) 3% (b) 1% (c) 2% (d) 6%
39. 39.₹6500 is invested at 11% per year simple interest. What is the amount after 4 years? (a) ₹9360 (b) ₹7215 (c) ₹2860 (d) ₹10075
40. 40.In how many years will ₹2500 earn ₹800 simple interest at 8% per year? (a) 3 years (b) 8 years (c) 5 years (d) 4 years

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