Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 486 · 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 ₹5500 earn ₹1650 simple interest at 10% per year? (a) 3 years (b) 4 years (c) 2 years (d) 6 years
2. 2.What is the simple interest on ₹8000 at 4% per year for 3 years? (a) ₹1280 (b) ₹8960 (c) ₹320 (d) ₹960
3. 3.The simple interest on ₹4500 for 4 years is ₹720. What is the rate per year? (a) 5% (b) 4% (c) 3% (d) 16%
4. 4.₹5000 is invested at 3% per year simple interest. What is the amount after 4 years? (a) ₹600 (b) ₹5600 (c) ₹5150 (d) ₹5750
5. 5.In how many years will ₹2000 earn ₹180 simple interest at 3% per year? (a) 6 years (b) 3 years (c) 2 years (d) 4 years
6. 6.What is the simple interest on ₹6000 at 12% per year for 3 years? (a) ₹8160 (b) ₹720 (c) ₹2880 (d) ₹2160
7. 7.The simple interest on ₹5000 for 2 years is ₹1100. What is the rate per year? (a) 22% (b) 12% (c) 10% (d) 11%
8. 8.The simple interest on ₹7500 for 3 years is ₹1800. What is the rate per year? (a) 9% (b) 8% (c) 24% (d) 7%
9. 9.₹9500 is invested at 9% per year simple interest. What is the amount after 4 years? (a) ₹13775 (b) ₹12920 (c) ₹10355 (d) ₹3420
10. 10.What is the simple interest on ₹3000 at 9% per year for 4 years? (a) ₹270 (b) ₹1350 (c) ₹1080 (d) ₹4080
11. 11.₹6000 is invested at 11% per year simple interest. What is the amount after 3 years? (a) ₹6660 (b) ₹1980 (c) ₹7980 (d) ₹8640
12. 12.What is the simple interest on ₹1500 at 3% per year for 2 years? (a) ₹1590 (b) ₹45 (c) ₹135 (d) ₹90
13. 13.The simple interest on ₹4000 for 5 years is ₹800. What is the rate per year? (a) 20% (b) 5% (c) 4% (d) 3%
14. 14.The simple interest on ₹4500 for 2 years is ₹540. What is the rate per year? (a) 7% (b) 12% (c) 5% (d) 6%
15. 15.In how many years will ₹9000 earn ₹1620 simple interest at 6% per year? (a) 2 years (b) 3 years (c) 6 years (d) 4 years
16. 16.In how many years will ₹6000 earn ₹2700 simple interest at 9% per year? (a) 6 years (b) 5 years (c) 4 years (d) 10 years
17. 17.₹3500 is invested at 12% per year simple interest. What is the amount after 3 years? (a) ₹4760 (b) ₹5180 (c) ₹1260 (d) ₹3920
18. 18.₹10000 is invested at 3% per year simple interest. What is the amount after 2 years? (a) ₹600 (b) ₹10900 (c) ₹10600 (d) ₹10300
19. 19.₹3000 is invested at 4% per year simple interest. What is the amount after 2 years? (a) ₹3240 (b) ₹240 (c) ₹3120 (d) ₹3360
20. 20.What is the simple interest on ₹5000 at 6% per year for 4 years? (a) ₹300 (b) ₹6200 (c) ₹1500 (d) ₹1200
21. 21.In how many years will ₹1500 earn ₹225 simple interest at 3% per year? (a) 10 years (b) 4 years (c) 5 years (d) 6 years
22. 22.In how many years will ₹5000 earn ₹1650 simple interest at 11% per year? (a) 4 years (b) 2 years (c) 6 years (d) 3 years
23. 23.In how many years will ₹3500 earn ₹840 simple interest at 12% per year? (a) 3 years (b) 2 years (c) 1 year (d) 4 years
24. 24.What is the simple interest on ₹3000 at 11% per year for 3 years? (a) ₹990 (b) ₹3990 (c) ₹330 (d) ₹1320
25. 25.In how many years will ₹3500 earn ₹420 simple interest at 3% per year? (a) 3 years (b) 5 years (c) 4 years (d) 8 years
26. 26.What is the simple interest on ₹5000 at 4% per year for 4 years? (a) ₹5800 (b) ₹1000 (c) ₹800 (d) ₹200
27. 27.₹3000 is invested at 4% per year simple interest. What is the amount after 3 years? (a) ₹3120 (b) ₹360 (c) ₹3480 (d) ₹3360
28. 28.What is the simple interest on ₹2000 at 2% per year for 5 years? (a) ₹40 (b) ₹240 (c) ₹2200 (d) ₹200
29. 29.₹5000 is invested at 2% per year simple interest. What is the amount after 3 years? (a) ₹5400 (b) ₹5300 (c) ₹5100 (d) ₹300
30. 30.What is the simple interest on ₹1500 at 7% per year for 4 years? (a) ₹1920 (b) ₹525 (c) ₹420 (d) ₹105
31. 31.₹1500 is invested at 3% per year simple interest. What is the amount after 5 years? (a) ₹1770 (b) ₹225 (c) ₹1545 (d) ₹1725
32. 32.What is the simple interest on ₹2500 at 11% per year for 3 years? (a) ₹1100 (b) ₹275 (c) ₹3325 (d) ₹825
33. 33.₹1500 is invested at 12% per year simple interest. What is the amount after 2 years? (a) ₹1680 (b) ₹2040 (c) ₹360 (d) ₹1860
34. 34.The simple interest on ₹3500 for 4 years is ₹1400. What is the rate per year? (a) 11% (b) 9% (c) 10% (d) 40%
35. 35.What is the simple interest on ₹1500 at 12% per year for 4 years? (a) ₹180 (b) ₹2220 (c) ₹900 (d) ₹720
36. 36.The simple interest on ₹2000 for 3 years is ₹300. What is the rate per year? (a) 5% (b) 6% (c) 4% (d) 15%
37. 37.₹3500 is invested at 11% per year simple interest. What is the amount after 4 years? (a) ₹5040 (b) ₹3885 (c) ₹5425 (d) ₹1540
38. 38.In how many years will ₹8000 earn ₹800 simple interest at 2% per year? (a) 5 years (b) 10 years (c) 4 years (d) 6 years
39. 39.In how many years will ₹5000 earn ₹2400 simple interest at 12% per year? (a) 3 years (b) 5 years (c) 4 years (d) 8 years
40. 40.The simple interest on ₹3000 for 3 years is ₹630. What is the rate per year? (a) 8% (b) 6% (c) 7% (d) 21%

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