Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 487 · 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 ₹8500 for 4 years is ₹1700. What is the rate per year? (a) 5% (b) 20% (c) 6% (d) 4%
2. 2.₹3000 is invested at 10% per year simple interest. What is the amount after 3 years? (a) ₹900 (b) ₹3900 (c) ₹3300 (d) ₹4200
3. 3.In how many years will ₹9500 earn ₹760 simple interest at 2% per year? (a) 8 years (b) 4 years (c) 3 years (d) 5 years
4. 4.In how many years will ₹3500 earn ₹350 simple interest at 5% per year? (a) 4 years (b) 3 years (c) 2 years (d) 1 year
5. 5.What is the simple interest on ₹2500 at 9% per year for 5 years? (a) ₹3625 (b) ₹1125 (c) ₹1350 (d) ₹225
6. 6.What is the simple interest on ₹3500 at 6% per year for 2 years? (a) ₹630 (b) ₹3920 (c) ₹420 (d) ₹210
7. 7.₹2000 is invested at 4% per year simple interest. What is the amount after 5 years? (a) ₹2080 (b) ₹2400 (c) ₹400 (d) ₹2480
8. 8.The simple interest on ₹5500 for 3 years is ₹990. What is the rate per year? (a) 7% (b) 5% (c) 6% (d) 18%
9. 9.The simple interest on ₹8000 for 4 years is ₹640. What is the rate per year? (a) 1% (b) 3% (c) 8% (d) 2%
10. 10.In how many years will ₹2000 earn ₹240 simple interest at 6% per year? (a) 3 years (b) 4 years (c) 1 year (d) 2 years
11. 11.The simple interest on ₹4000 for 2 years is ₹400. What is the rate per year? (a) 4% (b) 5% (c) 10% (d) 6%
12. 12.In how many years will ₹8000 earn ₹2400 simple interest at 10% per year? (a) 4 years (b) 3 years (c) 2 years (d) 6 years
13. 13.What is the simple interest on ₹9000 at 10% per year for 3 years? (a) ₹3600 (b) ₹900 (c) ₹11700 (d) ₹2700
14. 14.The simple interest on ₹3500 for 5 years is ₹1225. What is the rate per year? (a) 8% (b) 7% (c) 6% (d) 35%
15. 15.The simple interest on ₹6500 for 4 years is ₹2860. What is the rate per year? (a) 10% (b) 44% (c) 11% (d) 12%
16. 16.The simple interest on ₹2000 for 5 years is ₹800. What is the rate per year? (a) 8% (b) 9% (c) 7% (d) 40%
17. 17.In how many years will ₹9000 earn ₹1080 simple interest at 4% per year? (a) 2 years (b) 4 years (c) 3 years (d) 6 years
18. 18.The simple interest on ₹4500 for 2 years is ₹720. What is the rate per year? (a) 16% (b) 9% (c) 7% (d) 8%
19. 19.What is the simple interest on ₹6000 at 8% per year for 5 years? (a) ₹2400 (b) ₹2880 (c) ₹480 (d) ₹8400
20. 20.What is the simple interest on ₹4500 at 3% per year for 3 years? (a) ₹540 (b) ₹405 (c) ₹135 (d) ₹4905
21. 21.In how many years will ₹3500 earn ₹980 simple interest at 7% per year? (a) 4 years (b) 3 years (c) 5 years (d) 8 years
22. 22.What is the simple interest on ₹6500 at 7% per year for 5 years? (a) ₹2730 (b) ₹455 (c) ₹8775 (d) ₹2275
23. 23.The simple interest on ₹7500 for 5 years is ₹4125. What is the rate per year? (a) 11% (b) 10% (c) 12% (d) 55%
24. 24.The simple interest on ₹3500 for 2 years is ₹840. What is the rate per year? (a) 11% (b) 24% (c) 12% (d) 13%
25. 25.What is the simple interest on ₹6000 at 7% per year for 4 years? (a) ₹420 (b) ₹7680 (c) ₹2100 (d) ₹1680
26. 26.In how many years will ₹5500 earn ₹1540 simple interest at 7% per year? (a) 5 years (b) 4 years (c) 3 years (d) 8 years
27. 27.In how many years will ₹7000 earn ₹2310 simple interest at 11% per year? (a) 6 years (b) 2 years (c) 4 years (d) 3 years
28. 28.₹6500 is invested at 6% per year simple interest. What is the amount after 4 years? (a) ₹1560 (b) ₹8060 (c) ₹8450 (d) ₹6890
29. 29.In how many years will ₹2000 earn ₹1100 simple interest at 11% per year? (a) 4 years (b) 6 years (c) 10 years (d) 5 years
30. 30.₹2000 is invested at 6% per year simple interest. What is the amount after 5 years? (a) ₹600 (b) ₹2120 (c) ₹2600 (d) ₹2720
31. 31.₹5000 is invested at 2% per year simple interest. What is the amount after 5 years? (a) ₹5600 (b) ₹5100 (c) ₹5500 (d) ₹500
32. 32.The simple interest on ₹9000 for 5 years is ₹2250. What is the rate per year? (a) 4% (b) 6% (c) 25% (d) 5%
33. 33.What is the simple interest on ₹6500 at 12% per year for 3 years? (a) ₹3120 (b) ₹2340 (c) ₹780 (d) ₹8840
34. 34.In how many years will ₹6000 earn ₹900 simple interest at 5% per year? (a) 2 years (b) 4 years (c) 6 years (d) 3 years
35. 35.₹2500 is invested at 3% per year simple interest. What is the amount after 4 years? (a) ₹2575 (b) ₹2800 (c) ₹2875 (d) ₹300
36. 36.What is the simple interest on ₹1000 at 10% per year for 5 years? (a) ₹500 (b) ₹600 (c) ₹100 (d) ₹1500
37. 37.₹2000 is invested at 8% per year simple interest. What is the amount after 4 years? (a) ₹2160 (b) ₹2800 (c) ₹2640 (d) ₹640
38. 38.₹9000 is invested at 5% per year simple interest. What is the amount after 4 years? (a) ₹10800 (b) ₹11250 (c) ₹9450 (d) ₹1800
39. 39.What is the simple interest on ₹6000 at 9% per year for 3 years? (a) ₹1620 (b) ₹540 (c) ₹2160 (d) ₹7620
40. 40.₹3500 is invested at 4% per year simple interest. What is the amount after 4 years? (a) ₹3640 (b) ₹560 (c) ₹4200 (d) ₹4060

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