Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 449 · 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.₹8000 is invested at 12% per year simple interest. What is the amount after 2 years? (a) ₹8960 (b) ₹9920 (c) ₹1920 (d) ₹10880
2. 2.₹1000 is invested at 8% per year simple interest. What is the amount after 4 years? (a) ₹1400 (b) ₹1080 (c) ₹320 (d) ₹1320
3. 3.In how many years will ₹4500 earn ₹360 simple interest at 2% per year? (a) 3 years (b) 4 years (c) 5 years (d) 8 years
4. 4.In how many years will ₹2000 earn ₹720 simple interest at 12% per year? (a) 6 years (b) 4 years (c) 3 years (d) 2 years
5. 5.What is the simple interest on ₹6000 at 12% per year for 4 years? (a) ₹3600 (b) ₹2880 (c) ₹720 (d) ₹8880
6. 6.In how many years will ₹8500 earn ₹2975 simple interest at 7% per year? (a) 6 years (b) 4 years (c) 5 years (d) 10 years
7. 7.₹1500 is invested at 2% per year simple interest. What is the amount after 2 years? (a) ₹1530 (b) ₹60 (c) ₹1560 (d) ₹1590
8. 8.What is the simple interest on ₹5000 at 4% per year for 2 years? (a) ₹5400 (b) ₹200 (c) ₹400 (d) ₹600
9. 9.₹8000 is invested at 6% per year simple interest. What is the amount after 3 years? (a) ₹1440 (b) ₹8480 (c) ₹9920 (d) ₹9440
10. 10.The simple interest on ₹9000 for 3 years is ₹1080. What is the rate per year? (a) 12% (b) 5% (c) 4% (d) 3%
11. 11.What is the simple interest on ₹10000 at 9% per year for 4 years? (a) ₹900 (b) ₹3600 (c) ₹13600 (d) ₹4500
12. 12.₹1500 is invested at 7% per year simple interest. What is the amount after 5 years? (a) ₹2130 (b) ₹525 (c) ₹2025 (d) ₹1605
13. 13.In how many years will ₹1500 earn ₹300 simple interest at 5% per year? (a) 8 years (b) 5 years (c) 3 years (d) 4 years
14. 14.In how many years will ₹7500 earn ₹900 simple interest at 4% per year? (a) 3 years (b) 4 years (c) 6 years (d) 2 years
15. 15.The simple interest on ₹10000 for 4 years is ₹4000. What is the rate per year? (a) 11% (b) 9% (c) 10% (d) 40%
16. 16.₹10000 is invested at 5% per year simple interest. What is the amount after 3 years? (a) ₹11500 (b) ₹10500 (c) ₹12000 (d) ₹1500
17. 17.₹6000 is invested at 11% per year simple interest. What is the amount after 2 years? (a) ₹7320 (b) ₹6660 (c) ₹7980 (d) ₹1320
18. 18.In how many years will ₹9000 earn ₹3600 simple interest at 8% per year? (a) 6 years (b) 10 years (c) 4 years (d) 5 years
19. 19.What is the simple interest on ₹10000 at 2% per year for 4 years? (a) ₹1000 (b) ₹800 (c) ₹200 (d) ₹10800
20. 20.What is the simple interest on ₹4500 at 10% per year for 5 years? (a) ₹2700 (b) ₹2250 (c) ₹6750 (d) ₹450
21. 21.What is the simple interest on ₹9500 at 12% per year for 5 years? (a) ₹1140 (b) ₹6840 (c) ₹15200 (d) ₹5700
22. 22.What is the simple interest on ₹4000 at 12% per year for 3 years? (a) ₹480 (b) ₹5440 (c) ₹1920 (d) ₹1440
23. 23.In how many years will ₹1000 earn ₹400 simple interest at 10% per year? (a) 4 years (b) 3 years (c) 8 years (d) 5 years
24. 24.₹3500 is invested at 12% per year simple interest. What is the amount after 3 years? (a) ₹3920 (b) ₹5180 (c) ₹1260 (d) ₹4760
25. 25.₹9000 is invested at 12% per year simple interest. What is the amount after 2 years? (a) ₹11160 (b) ₹10080 (c) ₹12240 (d) ₹2160
26. 26.What is the simple interest on ₹9000 at 11% per year for 5 years? (a) ₹990 (b) ₹5940 (c) ₹13950 (d) ₹4950
27. 27.In how many years will ₹3000 earn ₹180 simple interest at 2% per year? (a) 3 years (b) 6 years (c) 2 years (d) 4 years
28. 28.₹10000 is invested at 3% per year simple interest. What is the amount after 2 years? (a) ₹10900 (b) ₹600 (c) ₹10600 (d) ₹10300
29. 29.₹3500 is invested at 5% per year simple interest. What is the amount after 2 years? (a) ₹4025 (b) ₹350 (c) ₹3675 (d) ₹3850
30. 30.In how many years will ₹4000 earn ₹600 simple interest at 3% per year? (a) 10 years (b) 5 years (c) 6 years (d) 4 years
31. 31.The simple interest on ₹7000 for 2 years is ₹1540. What is the rate per year? (a) 11% (b) 12% (c) 10% (d) 22%
32. 32.In how many years will ₹8000 earn ₹640 simple interest at 2% per year? (a) 5 years (b) 8 years (c) 4 years (d) 3 years
33. 33.What is the simple interest on ₹8000 at 10% per year for 4 years? (a) ₹11200 (b) ₹800 (c) ₹3200 (d) ₹4000
34. 34.₹7000 is invested at 10% per year simple interest. What is the amount after 5 years? (a) ₹10500 (b) ₹7700 (c) ₹11200 (d) ₹3500
35. 35.The simple interest on ₹10000 for 5 years is ₹2000. What is the rate per year? (a) 4% (b) 5% (c) 3% (d) 20%
36. 36.₹4500 is invested at 2% per year simple interest. What is the amount after 5 years? (a) ₹5040 (b) ₹4950 (c) ₹450 (d) ₹4590
37. 37.The simple interest on ₹3500 for 4 years is ₹1260. What is the rate per year? (a) 36% (b) 9% (c) 8% (d) 10%
38. 38.In how many years will ₹4500 earn ₹810 simple interest at 6% per year? (a) 6 years (b) 3 years (c) 2 years (d) 4 years
39. 39.The simple interest on ₹1500 for 2 years is ₹120. What is the rate per year? (a) 5% (b) 3% (c) 4% (d) 8%
40. 40.What is the simple interest on ₹1500 at 4% per year for 5 years? (a) ₹1800 (b) ₹360 (c) ₹60 (d) ₹300

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