Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 712 · 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.₹6000 is invested at 8% per year simple interest. What is the amount after 4 years? (a) ₹7920 (b) ₹1920 (c) ₹6480 (d) ₹8400
2. 2.₹10000 is invested at 9% per year simple interest. What is the amount after 5 years? (a) ₹10900 (b) ₹15400 (c) ₹4500 (d) ₹14500
3. 3.The simple interest on ₹9000 for 3 years is ₹1350. What is the rate per year? (a) 5% (b) 4% (c) 15% (d) 6%
4. 4.In how many years will ₹4000 earn ₹1800 simple interest at 9% per year? (a) 4 years (b) 10 years (c) 5 years (d) 6 years
5. 5.The simple interest on ₹3500 for 5 years is ₹350. What is the rate per year? (a) 2% (b) 1% (c) 10% (d) 3%
6. 6.What is the simple interest on ₹6000 at 5% per year for 5 years? (a) ₹1800 (b) ₹300 (c) ₹1500 (d) ₹7500
7. 7.In how many years will ₹4000 earn ₹1080 simple interest at 9% per year? (a) 3 years (b) 6 years (c) 2 years (d) 4 years
8. 8.₹1000 is invested at 11% per year simple interest. What is the amount after 3 years? (a) ₹330 (b) ₹1330 (c) ₹1440 (d) ₹1110
9. 9.₹3000 is invested at 8% per year simple interest. What is the amount after 2 years? (a) ₹3720 (b) ₹480 (c) ₹3480 (d) ₹3240
10. 10.In how many years will ₹4500 earn ₹405 simple interest at 3% per year? (a) 6 years (b) 2 years (c) 4 years (d) 3 years
11. 11.What is the simple interest on ₹4000 at 9% per year for 4 years? (a) ₹5440 (b) ₹360 (c) ₹1800 (d) ₹1440
12. 12.What is the simple interest on ₹5000 at 6% per year for 2 years? (a) ₹300 (b) ₹600 (c) ₹900 (d) ₹5600
13. 13.What is the simple interest on ₹1000 at 6% per year for 2 years? (a) ₹1120 (b) ₹60 (c) ₹180 (d) ₹120
14. 14.₹9500 is invested at 5% per year simple interest. What is the amount after 3 years? (a) ₹1425 (b) ₹11400 (c) ₹10925 (d) ₹9975
15. 15.The simple interest on ₹3500 for 4 years is ₹980. What is the rate per year? (a) 7% (b) 6% (c) 8% (d) 28%
16. 16.The simple interest on ₹9500 for 2 years is ₹1520. What is the rate per year? (a) 9% (b) 16% (c) 7% (d) 8%
17. 17.In how many years will ₹1000 earn ₹240 simple interest at 12% per year? (a) 3 years (b) 1 year (c) 2 years (d) 4 years
18. 18.What is the simple interest on ₹9000 at 10% per year for 3 years? (a) ₹900 (b) ₹2700 (c) ₹3600 (d) ₹11700
19. 19.The simple interest on ₹3500 for 2 years is ₹840. What is the rate per year? (a) 24% (b) 11% (c) 12% (d) 13%
20. 20.What is the simple interest on ₹7000 at 7% per year for 3 years? (a) ₹1960 (b) ₹1470 (c) ₹8470 (d) ₹490
21. 21.In how many years will ₹5500 earn ₹825 simple interest at 3% per year? (a) 4 years (b) 10 years (c) 5 years (d) 6 years
22. 22.What is the simple interest on ₹10000 at 9% per year for 5 years? (a) ₹14500 (b) ₹4500 (c) ₹5400 (d) ₹900
23. 23.In how many years will ₹7000 earn ₹1470 simple interest at 7% per year? (a) 3 years (b) 6 years (c) 2 years (d) 4 years
24. 24.What is the simple interest on ₹4000 at 11% per year for 3 years? (a) ₹1320 (b) ₹440 (c) ₹5320 (d) ₹1760
25. 25.₹4500 is invested at 12% per year simple interest. What is the amount after 2 years? (a) ₹6120 (b) ₹5040 (c) ₹5580 (d) ₹1080
26. 26.The simple interest on ₹9000 for 2 years is ₹900. What is the rate per year? (a) 4% (b) 10% (c) 6% (d) 5%
27. 27.The simple interest on ₹1500 for 5 years is ₹225. What is the rate per year? (a) 2% (b) 3% (c) 4% (d) 15%
28. 28.₹4000 is invested at 6% per year simple interest. What is the amount after 3 years? (a) ₹4960 (b) ₹4240 (c) ₹4720 (d) ₹720
29. 29.What is the simple interest on ₹5500 at 7% per year for 3 years? (a) ₹385 (b) ₹6655 (c) ₹1155 (d) ₹1540
30. 30.The simple interest on ₹7500 for 2 years is ₹450. What is the rate per year? (a) 3% (b) 4% (c) 2% (d) 6%
31. 31.In how many years will ₹9000 earn ₹810 simple interest at 3% per year? (a) 6 years (b) 3 years (c) 4 years (d) 2 years
32. 32.In how many years will ₹9000 earn ₹1350 simple interest at 5% per year? (a) 4 years (b) 6 years (c) 2 years (d) 3 years
33. 33.What is the simple interest on ₹8500 at 6% per year for 2 years? (a) ₹9520 (b) ₹1530 (c) ₹1020 (d) ₹510
34. 34.In how many years will ₹9000 earn ₹3600 simple interest at 10% per year? (a) 5 years (b) 3 years (c) 8 years (d) 4 years
35. 35.In how many years will ₹3000 earn ₹540 simple interest at 9% per year? (a) 4 years (b) 3 years (c) 1 year (d) 2 years
36. 36.₹9000 is invested at 3% per year simple interest. What is the amount after 4 years? (a) ₹1080 (b) ₹9270 (c) ₹10350 (d) ₹10080
37. 37.The simple interest on ₹1000 for 3 years is ₹150. What is the rate per year? (a) 6% (b) 5% (c) 4% (d) 15%
38. 38.What is the simple interest on ₹9500 at 2% per year for 5 years? (a) ₹10450 (b) ₹190 (c) ₹950 (d) ₹1140
39. 39.In how many years will ₹8500 earn ₹1360 simple interest at 8% per year? (a) 2 years (b) 1 year (c) 3 years (d) 4 years
40. 40.₹3500 is invested at 3% per year simple interest. What is the amount after 4 years? (a) ₹3605 (b) ₹420 (c) ₹3920 (d) ₹4025

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