Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 273 · 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 ₹4000 for 4 years is ₹1920. What is the rate per year? (a) 13% (b) 12% (c) 48% (d) 11%
2. 2.₹4500 is invested at 9% per year simple interest. What is the amount after 4 years? (a) ₹6120 (b) ₹1620 (c) ₹6525 (d) ₹4905
3. 3.What is the simple interest on ₹4500 at 4% per year for 2 years? (a) ₹4860 (b) ₹540 (c) ₹360 (d) ₹180
4. 4.In how many years will ₹3500 earn ₹1400 simple interest at 8% per year? (a) 4 years (b) 10 years (c) 6 years (d) 5 years
5. 5.₹5000 is invested at 5% per year simple interest. What is the amount after 3 years? (a) ₹6000 (b) ₹5250 (c) ₹750 (d) ₹5750
6. 6.In how many years will ₹7500 earn ₹1800 simple interest at 8% per year? (a) 3 years (b) 2 years (c) 6 years (d) 4 years
7. 7.What is the simple interest on ₹1000 at 3% per year for 5 years? (a) ₹1150 (b) ₹30 (c) ₹180 (d) ₹150
8. 8.The simple interest on ₹7000 for 4 years is ₹2240. What is the rate per year? (a) 7% (b) 8% (c) 32% (d) 9%
9. 9.₹6500 is invested at 2% per year simple interest. What is the amount after 3 years? (a) ₹6890 (b) ₹6630 (c) ₹7020 (d) ₹390
10. 10.The simple interest on ₹10000 for 3 years is ₹600. What is the rate per year? (a) 3% (b) 6% (c) 2% (d) 1%
11. 11.In how many years will ₹7000 earn ₹2520 simple interest at 9% per year? (a) 3 years (b) 5 years (c) 8 years (d) 4 years
12. 12.What is the simple interest on ₹3500 at 12% per year for 2 years? (a) ₹840 (b) ₹1260 (c) ₹4340 (d) ₹420
13. 13.In how many years will ₹1000 earn ₹220 simple interest at 11% per year? (a) 3 years (b) 2 years (c) 4 years (d) 1 year
14. 14.The simple interest on ₹3000 for 5 years is ₹300. What is the rate per year? (a) 3% (b) 1% (c) 2% (d) 10%
15. 15.What is the simple interest on ₹2500 at 10% per year for 4 years? (a) ₹250 (b) ₹1250 (c) ₹3500 (d) ₹1000
16. 16.In how many years will ₹7500 earn ₹1575 simple interest at 7% per year? (a) 4 years (b) 2 years (c) 6 years (d) 3 years
17. 17.In how many years will ₹1000 earn ₹180 simple interest at 6% per year? (a) 3 years (b) 6 years (c) 2 years (d) 4 years
18. 18.₹4500 is invested at 7% per year simple interest. What is the amount after 5 years? (a) ₹6390 (b) ₹6075 (c) ₹1575 (d) ₹4815
19. 19.In how many years will ₹2000 earn ₹600 simple interest at 10% per year? (a) 2 years (b) 4 years (c) 3 years (d) 6 years
20. 20.The simple interest on ₹10000 for 5 years is ₹4500. What is the rate per year? (a) 10% (b) 45% (c) 9% (d) 8%
21. 21.₹7000 is invested at 5% per year simple interest. What is the amount after 3 years? (a) ₹8400 (b) ₹8050 (c) ₹7350 (d) ₹1050
22. 22.₹10000 is invested at 11% per year simple interest. What is the amount after 5 years? (a) ₹15500 (b) ₹5500 (c) ₹16600 (d) ₹11100
23. 23.In how many years will ₹1000 earn ₹120 simple interest at 3% per year? (a) 8 years (b) 3 years (c) 4 years (d) 5 years
24. 24.₹9000 is invested at 7% per year simple interest. What is the amount after 5 years? (a) ₹9630 (b) ₹12780 (c) ₹12150 (d) ₹3150
25. 25.₹1000 is invested at 2% per year simple interest. What is the amount after 2 years? (a) ₹40 (b) ₹1020 (c) ₹1060 (d) ₹1040
26. 26.In how many years will ₹1500 earn ₹750 simple interest at 10% per year? (a) 4 years (b) 10 years (c) 5 years (d) 6 years
27. 27.In how many years will ₹7000 earn ₹1260 simple interest at 9% per year? (a) 1 year (b) 3 years (c) 4 years (d) 2 years
28. 28.In how many years will ₹10000 earn ₹1500 simple interest at 5% per year? (a) 3 years (b) 2 years (c) 6 years (d) 4 years
29. 29.What is the simple interest on ₹9500 at 9% per year for 4 years? (a) ₹12920 (b) ₹4275 (c) ₹3420 (d) ₹855
30. 30.₹5000 is invested at 3% per year simple interest. What is the amount after 2 years? (a) ₹5150 (b) ₹5450 (c) ₹300 (d) ₹5300
31. 31.₹3500 is invested at 7% per year simple interest. What is the amount after 2 years? (a) ₹3990 (b) ₹3745 (c) ₹490 (d) ₹4235
32. 32.₹4000 is invested at 11% per year simple interest. What is the amount after 2 years? (a) ₹880 (b) ₹4880 (c) ₹5320 (d) ₹4440
33. 33.The simple interest on ₹6500 for 3 years is ₹2340. What is the rate per year? (a) 13% (b) 11% (c) 36% (d) 12%
34. 34.The simple interest on ₹2000 for 4 years is ₹400. What is the rate per year? (a) 6% (b) 20% (c) 4% (d) 5%
35. 35.₹6500 is invested at 2% per year simple interest. What is the amount after 2 years? (a) ₹6630 (b) ₹6890 (c) ₹260 (d) ₹6760
36. 36.In how many years will ₹6000 earn ₹600 simple interest at 5% per year? (a) 3 years (b) 4 years (c) 1 year (d) 2 years
37. 37.The simple interest on ₹7500 for 5 years is ₹1500. What is the rate per year? (a) 5% (b) 3% (c) 20% (d) 4%
38. 38.The simple interest on ₹5500 for 2 years is ₹660. What is the rate per year? (a) 12% (b) 5% (c) 7% (d) 6%
39. 39.In how many years will ₹1000 earn ₹280 simple interest at 7% per year? (a) 4 years (b) 8 years (c) 5 years (d) 3 years
40. 40.What is the simple interest on ₹3000 at 10% per year for 3 years? (a) ₹900 (b) ₹3900 (c) ₹1200 (d) ₹300

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