Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 243 · 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.In how many years will ₹1500 earn ₹900 simple interest at 12% per year? (a) 6 years (b) 10 years (c) 5 years (d) 4 years
2. 2.In how many years will ₹7500 earn ₹3000 simple interest at 8% per year? (a) 4 years (b) 6 years (c) 5 years (d) 10 years
3. 3.In how many years will ₹3500 earn ₹1120 simple interest at 8% per year? (a) 4 years (b) 5 years (c) 8 years (d) 3 years
4. 4.₹4000 is invested at 11% per year simple interest. What is the amount after 4 years? (a) ₹4440 (b) ₹5760 (c) ₹6200 (d) ₹1760
5. 5.₹8500 is invested at 8% per year simple interest. What is the amount after 4 years? (a) ₹9180 (b) ₹11220 (c) ₹11900 (d) ₹2720
6. 6.₹1500 is invested at 7% per year simple interest. What is the amount after 4 years? (a) ₹2025 (b) ₹1920 (c) ₹1605 (d) ₹420
7. 7.The simple interest on ₹8000 for 3 years is ₹2160. What is the rate per year? (a) 27% (b) 10% (c) 8% (d) 9%
8. 8.The simple interest on ₹7000 for 3 years is ₹1050. What is the rate per year? (a) 4% (b) 6% (c) 15% (d) 5%
9. 9.What is the simple interest on ₹7000 at 9% per year for 2 years? (a) ₹630 (b) ₹1260 (c) ₹1890 (d) ₹8260
10. 10.₹7000 is invested at 2% per year simple interest. What is the amount after 4 years? (a) ₹560 (b) ₹7700 (c) ₹7560 (d) ₹7140
11. 11.₹8500 is invested at 10% per year simple interest. What is the amount after 4 years? (a) ₹12750 (b) ₹9350 (c) ₹3400 (d) ₹11900
12. 12.What is the simple interest on ₹5500 at 4% per year for 3 years? (a) ₹6160 (b) ₹660 (c) ₹220 (d) ₹880
13. 13.₹1000 is invested at 2% per year simple interest. What is the amount after 5 years? (a) ₹1020 (b) ₹1100 (c) ₹100 (d) ₹1120
14. 14.In how many years will ₹1000 earn ₹150 simple interest at 5% per year? (a) 2 years (b) 6 years (c) 4 years (d) 3 years
15. 15.The simple interest on ₹5000 for 4 years is ₹2400. What is the rate per year? (a) 48% (b) 12% (c) 11% (d) 13%
16. 16.In how many years will ₹3000 earn ₹720 simple interest at 8% per year? (a) 4 years (b) 2 years (c) 6 years (d) 3 years
17. 17.₹2000 is invested at 11% per year simple interest. What is the amount after 5 years? (a) ₹1100 (b) ₹2220 (c) ₹3320 (d) ₹3100
18. 18.What is the simple interest on ₹7500 at 3% per year for 3 years? (a) ₹8175 (b) ₹675 (c) ₹900 (d) ₹225
19. 19.The simple interest on ₹3500 for 3 years is ₹840. What is the rate per year? (a) 24% (b) 7% (c) 9% (d) 8%
20. 20.₹9500 is invested at 5% per year simple interest. What is the amount after 2 years? (a) ₹9975 (b) ₹10925 (c) ₹10450 (d) ₹950
21. 21.In how many years will ₹4000 earn ₹1600 simple interest at 8% per year? (a) 10 years (b) 4 years (c) 5 years (d) 6 years
22. 22.₹7500 is invested at 12% per year simple interest. What is the amount after 4 years? (a) ₹12000 (b) ₹3600 (c) ₹11100 (d) ₹8400
23. 23.What is the simple interest on ₹4500 at 12% per year for 2 years? (a) ₹540 (b) ₹5580 (c) ₹1620 (d) ₹1080
24. 24.₹2000 is invested at 3% per year simple interest. What is the amount after 2 years? (a) ₹2120 (b) ₹120 (c) ₹2180 (d) ₹2060
25. 25.What is the simple interest on ₹4000 at 7% per year for 3 years? (a) ₹840 (b) ₹4840 (c) ₹280 (d) ₹1120
26. 26.What is the simple interest on ₹5500 at 10% per year for 3 years? (a) ₹2200 (b) ₹1650 (c) ₹7150 (d) ₹550
27. 27.What is the simple interest on ₹7500 at 3% per year for 4 years? (a) ₹900 (b) ₹225 (c) ₹8400 (d) ₹1125
28. 28.What is the simple interest on ₹7000 at 3% per year for 5 years? (a) ₹210 (b) ₹1050 (c) ₹1260 (d) ₹8050
29. 29.₹8500 is invested at 4% per year simple interest. What is the amount after 3 years? (a) ₹8840 (b) ₹9520 (c) ₹1020 (d) ₹9860
30. 30.The simple interest on ₹6500 for 5 years is ₹3575. What is the rate per year? (a) 11% (b) 12% (c) 10% (d) 55%
31. 31.₹4500 is invested at 2% per year simple interest. What is the amount after 4 years? (a) ₹4950 (b) ₹4590 (c) ₹4860 (d) ₹360
32. 32.₹4000 is invested at 3% per year simple interest. What is the amount after 3 years? (a) ₹360 (b) ₹4360 (c) ₹4120 (d) ₹4480
33. 33.The simple interest on ₹7500 for 3 years is ₹1125. What is the rate per year? (a) 4% (b) 15% (c) 6% (d) 5%
34. 34.The simple interest on ₹10000 for 3 years is ₹900. What is the rate per year? (a) 4% (b) 2% (c) 3% (d) 9%
35. 35.What is the simple interest on ₹8500 at 8% per year for 4 years? (a) ₹3400 (b) ₹2720 (c) ₹11220 (d) ₹680
36. 36.The simple interest on ₹2500 for 2 years is ₹600. What is the rate per year? (a) 13% (b) 12% (c) 24% (d) 11%
37. 37.In how many years will ₹7500 earn ₹1125 simple interest at 3% per year? (a) 10 years (b) 6 years (c) 5 years (d) 4 years
38. 38.The simple interest on ₹1500 for 2 years is ₹90. What is the rate per year? (a) 4% (b) 3% (c) 2% (d) 6%
39. 39.The simple interest on ₹4500 for 4 years is ₹1260. What is the rate per year? (a) 6% (b) 28% (c) 8% (d) 7%
40. 40.What is the simple interest on ₹10000 at 2% per year for 4 years? (a) ₹200 (b) ₹10800 (c) ₹800 (d) ₹1000

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