Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 893 · 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.What is the simple interest on ₹7000 at 9% per year for 4 years? (a) ₹9520 (b) ₹630 (c) ₹2520 (d) ₹3150
2. 2.The simple interest on ₹8500 for 2 years is ₹340. What is the rate per year? (a) 2% (b) 1% (c) 4% (d) 3%
3. 3.The simple interest on ₹5000 for 5 years is ₹2000. What is the rate per year? (a) 7% (b) 8% (c) 40% (d) 9%
4. 4.₹2500 is invested at 12% per year simple interest. What is the amount after 4 years? (a) ₹4000 (b) ₹2800 (c) ₹3700 (d) ₹1200
5. 5.What is the simple interest on ₹2500 at 4% per year for 4 years? (a) ₹400 (b) ₹2900 (c) ₹500 (d) ₹100
6. 6.The simple interest on ₹6500 for 4 years is ₹1040. What is the rate per year? (a) 3% (b) 16% (c) 4% (d) 5%
7. 7.The simple interest on ₹9500 for 4 years is ₹760. What is the rate per year? (a) 1% (b) 8% (c) 3% (d) 2%
8. 8.The simple interest on ₹2500 for 2 years is ₹300. What is the rate per year? (a) 5% (b) 7% (c) 6% (d) 12%
9. 9.₹10000 is invested at 10% per year simple interest. What is the amount after 4 years? (a) ₹4000 (b) ₹11000 (c) ₹14000 (d) ₹15000
10. 10.What is the simple interest on ₹7500 at 10% per year for 5 years? (a) ₹4500 (b) ₹3750 (c) ₹11250 (d) ₹750
11. 11.The simple interest on ₹3000 for 5 years is ₹1500. What is the rate per year? (a) 11% (b) 50% (c) 9% (d) 10%
12. 12.What is the simple interest on ₹8000 at 7% per year for 4 years? (a) ₹560 (b) ₹2240 (c) ₹2800 (d) ₹10240
13. 13.In how many years will ₹10000 earn ₹1400 simple interest at 7% per year? (a) 1 year (b) 3 years (c) 2 years (d) 4 years
14. 14.₹6500 is invested at 9% per year simple interest. What is the amount after 2 years? (a) ₹1170 (b) ₹8255 (c) ₹7670 (d) ₹7085
15. 15.In how many years will ₹10000 earn ₹5000 simple interest at 10% per year? (a) 6 years (b) 10 years (c) 4 years (d) 5 years
16. 16.The simple interest on ₹5500 for 3 years is ₹330. What is the rate per year? (a) 1% (b) 3% (c) 2% (d) 6%
17. 17.The simple interest on ₹2000 for 3 years is ₹600. What is the rate per year? (a) 10% (b) 11% (c) 9% (d) 30%
18. 18.₹6000 is invested at 9% per year simple interest. What is the amount after 5 years? (a) ₹6540 (b) ₹8700 (c) ₹9240 (d) ₹2700
19. 19.₹8500 is invested at 10% per year simple interest. What is the amount after 3 years? (a) ₹11900 (b) ₹11050 (c) ₹9350 (d) ₹2550
20. 20.The simple interest on ₹7500 for 3 years is ₹2025. What is the rate per year? (a) 10% (b) 27% (c) 8% (d) 9%
21. 21.In how many years will ₹8000 earn ₹480 simple interest at 3% per year? (a) 3 years (b) 1 year (c) 4 years (d) 2 years
22. 22.₹6500 is invested at 4% per year simple interest. What is the amount after 5 years? (a) ₹6760 (b) ₹1300 (c) ₹7800 (d) ₹8060
23. 23.In how many years will ₹6000 earn ₹1800 simple interest at 10% per year? (a) 2 years (b) 6 years (c) 3 years (d) 4 years
24. 24.In how many years will ₹8000 earn ₹1200 simple interest at 3% per year? (a) 5 years (b) 4 years (c) 10 years (d) 6 years
25. 25.In how many years will ₹10000 earn ₹1500 simple interest at 5% per year? (a) 3 years (b) 4 years (c) 6 years (d) 2 years
26. 26.The simple interest on ₹9500 for 5 years is ₹1425. What is the rate per year? (a) 15% (b) 2% (c) 3% (d) 4%
27. 27.What is the simple interest on ₹7500 at 8% per year for 5 years? (a) ₹3600 (b) ₹10500 (c) ₹3000 (d) ₹600
28. 28.In how many years will ₹4500 earn ₹1620 simple interest at 12% per year? (a) 6 years (b) 3 years (c) 2 years (d) 4 years
29. 29.In how many years will ₹9000 earn ₹2160 simple interest at 8% per year? (a) 6 years (b) 2 years (c) 3 years (d) 4 years
30. 30.The simple interest on ₹8000 for 5 years is ₹2000. What is the rate per year? (a) 25% (b) 4% (c) 5% (d) 6%
31. 31.In how many years will ₹8500 earn ₹510 simple interest at 3% per year? (a) 3 years (b) 1 year (c) 4 years (d) 2 years
32. 32.₹5500 is invested at 8% per year simple interest. What is the amount after 2 years? (a) ₹880 (b) ₹5940 (c) ₹6380 (d) ₹6820
33. 33.The simple interest on ₹3500 for 5 years is ₹2100. What is the rate per year? (a) 11% (b) 13% (c) 12% (d) 60%
34. 34.What is the simple interest on ₹1000 at 6% per year for 2 years? (a) ₹120 (b) ₹1120 (c) ₹180 (d) ₹60
35. 35.What is the simple interest on ₹5000 at 10% per year for 5 years? (a) ₹2500 (b) ₹500 (c) ₹7500 (d) ₹3000
36. 36.The simple interest on ₹8500 for 3 years is ₹2805. What is the rate per year? (a) 33% (b) 10% (c) 11% (d) 12%
37. 37.What is the simple interest on ₹5000 at 6% per year for 2 years? (a) ₹900 (b) ₹600 (c) ₹300 (d) ₹5600
38. 38.₹7000 is invested at 9% per year simple interest. What is the amount after 2 years? (a) ₹7630 (b) ₹8260 (c) ₹8890 (d) ₹1260
39. 39.In how many years will ₹6500 earn ₹975 simple interest at 3% per year? (a) 6 years (b) 5 years (c) 4 years (d) 10 years
40. 40.What is the simple interest on ₹7000 at 2% per year for 3 years? (a) ₹560 (b) ₹7420 (c) ₹140 (d) ₹420

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