Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 324 · 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.₹1500 is invested at 7% per year simple interest. What is the amount after 3 years? (a) ₹315 (b) ₹1920 (c) ₹1815 (d) ₹1605
2. 2.In how many years will ₹5000 earn ₹1800 simple interest at 12% per year? (a) 6 years (b) 4 years (c) 2 years (d) 3 years
3. 3.₹8000 is invested at 11% per year simple interest. What is the amount after 2 years? (a) ₹8880 (b) ₹9760 (c) ₹1760 (d) ₹10640
4. 4.₹8500 is invested at 12% per year simple interest. What is the amount after 2 years? (a) ₹11560 (b) ₹9520 (c) ₹10540 (d) ₹2040
5. 5.In how many years will ₹9500 earn ₹1900 simple interest at 10% per year? (a) 1 year (b) 3 years (c) 2 years (d) 4 years
6. 6.In how many years will ₹5500 earn ₹550 simple interest at 2% per year? (a) 4 years (b) 6 years (c) 5 years (d) 10 years
7. 7.₹4000 is invested at 5% per year simple interest. What is the amount after 5 years? (a) ₹5200 (b) ₹4200 (c) ₹5000 (d) ₹1000
8. 8.In how many years will ₹3000 earn ₹750 simple interest at 5% per year? (a) 10 years (b) 4 years (c) 5 years (d) 6 years
9. 9.What is the simple interest on ₹10000 at 9% per year for 4 years? (a) ₹900 (b) ₹3600 (c) ₹13600 (d) ₹4500
10. 10.₹9000 is invested at 5% per year simple interest. What is the amount after 3 years? (a) ₹9450 (b) ₹10800 (c) ₹1350 (d) ₹10350
11. 11.The simple interest on ₹2000 for 5 years is ₹300. What is the rate per year? (a) 15% (b) 4% (c) 3% (d) 2%
12. 12.The simple interest on ₹7500 for 5 years is ₹1125. What is the rate per year? (a) 4% (b) 15% (c) 3% (d) 2%
13. 13.In how many years will ₹1000 earn ₹280 simple interest at 7% per year? (a) 4 years (b) 5 years (c) 3 years (d) 8 years
14. 14.What is the simple interest on ₹4500 at 2% per year for 5 years? (a) ₹450 (b) ₹540 (c) ₹4950 (d) ₹90
15. 15.What is the simple interest on ₹2500 at 11% per year for 2 years? (a) ₹3050 (b) ₹550 (c) ₹275 (d) ₹825
16. 16.In how many years will ₹9500 earn ₹4750 simple interest at 10% per year? (a) 10 years (b) 6 years (c) 5 years (d) 4 years
17. 17.₹2500 is invested at 8% per year simple interest. What is the amount after 5 years? (a) ₹1000 (b) ₹2700 (c) ₹3700 (d) ₹3500
18. 18.In how many years will ₹4000 earn ₹600 simple interest at 3% per year? (a) 6 years (b) 10 years (c) 4 years (d) 5 years
19. 19.₹3000 is invested at 11% per year simple interest. What is the amount after 5 years? (a) ₹4980 (b) ₹1650 (c) ₹4650 (d) ₹3330
20. 20.What is the simple interest on ₹10000 at 3% per year for 4 years? (a) ₹300 (b) ₹11200 (c) ₹1500 (d) ₹1200
21. 21.In how many years will ₹3000 earn ₹1200 simple interest at 8% per year? (a) 10 years (b) 5 years (c) 4 years (d) 6 years
22. 22.What is the simple interest on ₹6000 at 3% per year for 3 years? (a) ₹6540 (b) ₹180 (c) ₹720 (d) ₹540
23. 23.What is the simple interest on ₹1500 at 3% per year for 5 years? (a) ₹225 (b) ₹1725 (c) ₹45 (d) ₹270
24. 24.₹9500 is invested at 12% per year simple interest. What is the amount after 2 years? (a) ₹10640 (b) ₹11780 (c) ₹2280 (d) ₹12920
25. 25.₹7500 is invested at 3% per year simple interest. What is the amount after 3 years? (a) ₹8400 (b) ₹8175 (c) ₹7725 (d) ₹675
26. 26.₹5000 is invested at 5% per year simple interest. What is the amount after 2 years? (a) ₹5750 (b) ₹5500 (c) ₹5250 (d) ₹500
27. 27.₹1500 is invested at 2% per year simple interest. What is the amount after 4 years? (a) ₹120 (b) ₹1530 (c) ₹1620 (d) ₹1650
28. 28.What is the simple interest on ₹3000 at 6% per year for 5 years? (a) ₹180 (b) ₹900 (c) ₹1080 (d) ₹3900
29. 29.What is the simple interest on ₹6000 at 11% per year for 3 years? (a) ₹2640 (b) ₹7980 (c) ₹1980 (d) ₹660
30. 30.The simple interest on ₹3000 for 3 years is ₹360. What is the rate per year? (a) 5% (b) 12% (c) 4% (d) 3%
31. 31.What is the simple interest on ₹7500 at 2% per year for 2 years? (a) ₹7800 (b) ₹150 (c) ₹300 (d) ₹450
32. 32.The simple interest on ₹5500 for 2 years is ₹1100. What is the rate per year? (a) 9% (b) 11% (c) 20% (d) 10%
33. 33.The simple interest on ₹2000 for 5 years is ₹200. What is the rate per year? (a) 1% (b) 3% (c) 10% (d) 2%
34. 34.₹3500 is invested at 8% per year simple interest. What is the amount after 3 years? (a) ₹3780 (b) ₹4620 (c) ₹4340 (d) ₹840
35. 35.What is the simple interest on ₹4500 at 9% per year for 4 years? (a) ₹6120 (b) ₹405 (c) ₹1620 (d) ₹2025
36. 36.In how many years will ₹5000 earn ₹1000 simple interest at 4% per year? (a) 4 years (b) 6 years (c) 5 years (d) 10 years
37. 37.₹7000 is invested at 3% per year simple interest. What is the amount after 2 years? (a) ₹7210 (b) ₹7420 (c) ₹7630 (d) ₹420
38. 38.The simple interest on ₹2500 for 3 years is ₹450. What is the rate per year? (a) 7% (b) 6% (c) 5% (d) 18%
39. 39.₹1000 is invested at 7% per year simple interest. What is the amount after 5 years? (a) ₹1420 (b) ₹1070 (c) ₹1350 (d) ₹350
40. 40.The simple interest on ₹7500 for 4 years is ₹2400. What is the rate per year? (a) 9% (b) 8% (c) 32% (d) 7%

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