Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 440 · 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 ₹5000 for 5 years is ₹3000. What is the rate per year? (a) 11% (b) 12% (c) 13% (d) 60%
2. 2.The simple interest on ₹1000 for 3 years is ₹270. What is the rate per year? (a) 8% (b) 9% (c) 27% (d) 10%
3. 3.What is the simple interest on ₹3000 at 4% per year for 2 years? (a) ₹360 (b) ₹240 (c) ₹3240 (d) ₹120
4. 4.In how many years will ₹5000 earn ₹1000 simple interest at 4% per year? (a) 10 years (b) 6 years (c) 5 years (d) 4 years
5. 5.What is the simple interest on ₹10000 at 10% per year for 3 years? (a) ₹13000 (b) ₹4000 (c) ₹1000 (d) ₹3000
6. 6.The simple interest on ₹2000 for 3 years is ₹720. What is the rate per year? (a) 36% (b) 13% (c) 11% (d) 12%
7. 7.The simple interest on ₹3500 for 2 years is ₹420. What is the rate per year? (a) 7% (b) 5% (c) 12% (d) 6%
8. 8.What is the simple interest on ₹9500 at 11% per year for 4 years? (a) ₹13680 (b) ₹1045 (c) ₹5225 (d) ₹4180
9. 9.₹9000 is invested at 6% per year simple interest. What is the amount after 3 years? (a) ₹9540 (b) ₹10620 (c) ₹1620 (d) ₹11160
10. 10.What is the simple interest on ₹6500 at 2% per year for 2 years? (a) ₹130 (b) ₹390 (c) ₹260 (d) ₹6760
11. 11.The simple interest on ₹7000 for 4 years is ₹1680. What is the rate per year? (a) 6% (b) 24% (c) 7% (d) 5%
12. 12.The simple interest on ₹5500 for 2 years is ₹1210. What is the rate per year? (a) 11% (b) 10% (c) 12% (d) 22%
13. 13.What is the simple interest on ₹5500 at 5% per year for 5 years? (a) ₹6875 (b) ₹275 (c) ₹1375 (d) ₹1650
14. 14.What is the simple interest on ₹6000 at 2% per year for 2 years? (a) ₹240 (b) ₹360 (c) ₹6240 (d) ₹120
15. 15.₹3500 is invested at 4% per year simple interest. What is the amount after 2 years? (a) ₹3780 (b) ₹3920 (c) ₹280 (d) ₹3640
16. 16.What is the simple interest on ₹5000 at 12% per year for 2 years? (a) ₹1200 (b) ₹1800 (c) ₹600 (d) ₹6200
17. 17.The simple interest on ₹5000 for 5 years is ₹1250. What is the rate per year? (a) 6% (b) 4% (c) 25% (d) 5%
18. 18.The simple interest on ₹6000 for 4 years is ₹2160. What is the rate per year? (a) 36% (b) 10% (c) 9% (d) 8%
19. 19.The simple interest on ₹5500 for 5 years is ₹1650. What is the rate per year? (a) 6% (b) 30% (c) 5% (d) 7%
20. 20.₹8500 is invested at 6% per year simple interest. What is the amount after 2 years? (a) ₹1020 (b) ₹10030 (c) ₹9010 (d) ₹9520
21. 21.The simple interest on ₹9000 for 2 years is ₹2160. What is the rate per year? (a) 13% (b) 11% (c) 24% (d) 12%
22. 22.What is the simple interest on ₹9000 at 8% per year for 5 years? (a) ₹12600 (b) ₹4320 (c) ₹3600 (d) ₹720
23. 23.The simple interest on ₹3000 for 2 years is ₹600. What is the rate per year? (a) 20% (b) 11% (c) 10% (d) 9%
24. 24.In how many years will ₹1500 earn ₹360 simple interest at 12% per year? (a) 1 year (b) 2 years (c) 4 years (d) 3 years
25. 25.The simple interest on ₹7000 for 4 years is ₹1120. What is the rate per year? (a) 16% (b) 3% (c) 5% (d) 4%
26. 26.What is the simple interest on ₹4500 at 12% per year for 3 years? (a) ₹2160 (b) ₹1620 (c) ₹6120 (d) ₹540
27. 27.The simple interest on ₹7000 for 3 years is ₹1890. What is the rate per year? (a) 8% (b) 27% (c) 10% (d) 9%
28. 28.What is the simple interest on ₹3500 at 9% per year for 2 years? (a) ₹630 (b) ₹4130 (c) ₹315 (d) ₹945
29. 29.The simple interest on ₹9500 for 2 years is ₹1520. What is the rate per year? (a) 7% (b) 16% (c) 9% (d) 8%
30. 30.₹4000 is invested at 7% per year simple interest. What is the amount after 2 years? (a) ₹4280 (b) ₹4840 (c) ₹560 (d) ₹4560
31. 31.₹3500 is invested at 12% per year simple interest. What is the amount after 5 years? (a) ₹6020 (b) ₹2100 (c) ₹3920 (d) ₹5600
32. 32.₹1500 is invested at 2% per year simple interest. What is the amount after 4 years? (a) ₹120 (b) ₹1530 (c) ₹1620 (d) ₹1650
33. 33.The simple interest on ₹1000 for 5 years is ₹200. What is the rate per year? (a) 5% (b) 3% (c) 4% (d) 20%
34. 34.₹4000 is invested at 6% per year simple interest. What is the amount after 3 years? (a) ₹720 (b) ₹4720 (c) ₹4960 (d) ₹4240
35. 35.In how many years will ₹2500 earn ₹150 simple interest at 2% per year? (a) 2 years (b) 6 years (c) 3 years (d) 4 years
36. 36.What is the simple interest on ₹8000 at 12% per year for 2 years? (a) ₹2880 (b) ₹1920 (c) ₹9920 (d) ₹960
37. 37.₹3000 is invested at 11% per year simple interest. What is the amount after 2 years? (a) ₹660 (b) ₹3330 (c) ₹3660 (d) ₹3990
38. 38.₹1500 is invested at 7% per year simple interest. What is the amount after 4 years? (a) ₹420 (b) ₹2025 (c) ₹1920 (d) ₹1605
39. 39.The simple interest on ₹1500 for 5 years is ₹150. What is the rate per year? (a) 3% (b) 2% (c) 10% (d) 1%
40. 40.What is the simple interest on ₹5500 at 12% per year for 5 years? (a) ₹3300 (b) ₹660 (c) ₹8800 (d) ₹3960

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