Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 611 · 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.₹10000 is invested at 9% per year simple interest. What is the amount after 3 years? (a) ₹10900 (b) ₹2700 (c) ₹12700 (d) ₹13600
2. 2.In how many years will ₹7500 earn ₹1125 simple interest at 5% per year? (a) 6 years (b) 4 years (c) 2 years (d) 3 years
3. 3.The simple interest on ₹8500 for 4 years is ₹1700. What is the rate per year? (a) 5% (b) 20% (c) 6% (d) 4%
4. 4.In how many years will ₹7500 earn ₹450 simple interest at 2% per year? (a) 6 years (b) 4 years (c) 2 years (d) 3 years
5. 5.What is the simple interest on ₹10000 at 8% per year for 5 years? (a) ₹4000 (b) ₹14000 (c) ₹800 (d) ₹4800
6. 6.In how many years will ₹9500 earn ₹855 simple interest at 3% per year? (a) 4 years (b) 6 years (c) 3 years (d) 2 years
7. 7.What is the simple interest on ₹4500 at 8% per year for 2 years? (a) ₹1080 (b) ₹5220 (c) ₹360 (d) ₹720
8. 8.In how many years will ₹9500 earn ₹1425 simple interest at 5% per year? (a) 6 years (b) 4 years (c) 3 years (d) 2 years
9. 9.In how many years will ₹2500 earn ₹600 simple interest at 8% per year? (a) 3 years (b) 6 years (c) 2 years (d) 4 years
10. 10.In how many years will ₹7000 earn ₹280 simple interest at 2% per year? (a) 3 years (b) 2 years (c) 4 years (d) 1 year
11. 11.₹6500 is invested at 10% per year simple interest. What is the amount after 2 years? (a) ₹1300 (b) ₹7150 (c) ₹8450 (d) ₹7800
12. 12.In how many years will ₹1500 earn ₹120 simple interest at 4% per year? (a) 1 year (b) 3 years (c) 4 years (d) 2 years
13. 13.In how many years will ₹2500 earn ₹100 simple interest at 2% per year? (a) 3 years (b) 4 years (c) 2 years (d) 1 year
14. 14.The simple interest on ₹6000 for 3 years is ₹360. What is the rate per year? (a) 6% (b) 2% (c) 3% (d) 1%
15. 15.In how many years will ₹9000 earn ₹3600 simple interest at 10% per year? (a) 8 years (b) 5 years (c) 3 years (d) 4 years
16. 16.₹1000 is invested at 3% per year simple interest. What is the amount after 5 years? (a) ₹150 (b) ₹1180 (c) ₹1150 (d) ₹1030
17. 17.In how many years will ₹8500 earn ₹4080 simple interest at 12% per year? (a) 5 years (b) 4 years (c) 8 years (d) 3 years
18. 18.What is the simple interest on ₹5000 at 4% per year for 3 years? (a) ₹200 (b) ₹5600 (c) ₹600 (d) ₹800
19. 19.What is the simple interest on ₹4500 at 3% per year for 2 years? (a) ₹405 (b) ₹4770 (c) ₹135 (d) ₹270
20. 20.The simple interest on ₹3000 for 2 years is ₹240. What is the rate per year? (a) 3% (b) 4% (c) 5% (d) 8%
21. 21.₹1500 is invested at 8% per year simple interest. What is the amount after 5 years? (a) ₹2220 (b) ₹2100 (c) ₹600 (d) ₹1620
22. 22.₹3000 is invested at 6% per year simple interest. What is the amount after 2 years? (a) ₹3360 (b) ₹360 (c) ₹3540 (d) ₹3180
23. 23.₹9000 is invested at 5% per year simple interest. What is the amount after 3 years? (a) ₹10350 (b) ₹1350 (c) ₹9450 (d) ₹10800
24. 24.In how many years will ₹5000 earn ₹750 simple interest at 3% per year? (a) 10 years (b) 6 years (c) 4 years (d) 5 years
25. 25.₹3500 is invested at 10% per year simple interest. What is the amount after 3 years? (a) ₹1050 (b) ₹3850 (c) ₹4900 (d) ₹4550
26. 26.What is the simple interest on ₹7500 at 4% per year for 2 years? (a) ₹300 (b) ₹900 (c) ₹8100 (d) ₹600
27. 27.The simple interest on ₹10000 for 4 years is ₹3600. What is the rate per year? (a) 8% (b) 10% (c) 36% (d) 9%
28. 28.The simple interest on ₹1500 for 3 years is ₹495. What is the rate per year? (a) 12% (b) 33% (c) 10% (d) 11%
29. 29.The simple interest on ₹6500 for 3 years is ₹390. What is the rate per year? (a) 3% (b) 1% (c) 6% (d) 2%
30. 30.What is the simple interest on ₹3000 at 6% per year for 5 years? (a) ₹3900 (b) ₹1080 (c) ₹900 (d) ₹180
31. 31.What is the simple interest on ₹6500 at 3% per year for 2 years? (a) ₹6890 (b) ₹195 (c) ₹390 (d) ₹585
32. 32.The simple interest on ₹10000 for 5 years is ₹6000. What is the rate per year? (a) 11% (b) 13% (c) 12% (d) 60%
33. 33.What is the simple interest on ₹8000 at 2% per year for 4 years? (a) ₹640 (b) ₹160 (c) ₹800 (d) ₹8640
34. 34.₹10000 is invested at 11% per year simple interest. What is the amount after 3 years? (a) ₹14400 (b) ₹13300 (c) ₹11100 (d) ₹3300
35. 35.The simple interest on ₹5500 for 5 years is ₹550. What is the rate per year? (a) 2% (b) 3% (c) 10% (d) 1%
36. 36.In how many years will ₹3000 earn ₹240 simple interest at 4% per year? (a) 4 years (b) 1 year (c) 2 years (d) 3 years
37. 37.In how many years will ₹7000 earn ₹3360 simple interest at 12% per year? (a) 5 years (b) 3 years (c) 8 years (d) 4 years
38. 38.In how many years will ₹4500 earn ₹2025 simple interest at 9% per year? (a) 4 years (b) 10 years (c) 6 years (d) 5 years
39. 39.The simple interest on ₹1000 for 5 years is ₹350. What is the rate per year? (a) 6% (b) 7% (c) 8% (d) 35%
40. 40.₹3000 is invested at 10% per year simple interest. What is the amount after 2 years? (a) ₹600 (b) ₹3600 (c) ₹3300 (d) ₹3900

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