Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 418 · 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 6% per year simple interest. What is the amount after 2 years? (a) ₹960 (b) ₹9440 (c) ₹8960 (d) ₹8480
2. 2.₹1000 is invested at 3% per year simple interest. What is the amount after 5 years? (a) ₹1150 (b) ₹1030 (c) ₹150 (d) ₹1180
3. 3.₹4500 is invested at 11% per year simple interest. What is the amount after 4 years? (a) ₹6975 (b) ₹6480 (c) ₹1980 (d) ₹4995
4. 4.What is the simple interest on ₹5000 at 9% per year for 5 years? (a) ₹2700 (b) ₹450 (c) ₹2250 (d) ₹7250
5. 5.What is the simple interest on ₹6000 at 10% per year for 3 years? (a) ₹1800 (b) ₹7800 (c) ₹600 (d) ₹2400
6. 6.The simple interest on ₹6000 for 5 years is ₹2100. What is the rate per year? (a) 7% (b) 6% (c) 35% (d) 8%
7. 7.₹1000 is invested at 10% per year simple interest. What is the amount after 5 years? (a) ₹500 (b) ₹1100 (c) ₹1600 (d) ₹1500
8. 8.The simple interest on ₹8000 for 3 years is ₹2880. What is the rate per year? (a) 12% (b) 13% (c) 36% (d) 11%
9. 9.The simple interest on ₹6500 for 2 years is ₹1430. What is the rate per year? (a) 11% (b) 12% (c) 10% (d) 22%
10. 10.What is the simple interest on ₹7500 at 6% per year for 5 years? (a) ₹2700 (b) ₹450 (c) ₹9750 (d) ₹2250
11. 11.What is the simple interest on ₹7500 at 3% per year for 3 years? (a) ₹675 (b) ₹225 (c) ₹900 (d) ₹8175
12. 12.₹5500 is invested at 11% per year simple interest. What is the amount after 2 years? (a) ₹6710 (b) ₹6105 (c) ₹1210 (d) ₹7315
13. 13.The simple interest on ₹9500 for 3 years is ₹3420. What is the rate per year? (a) 12% (b) 11% (c) 36% (d) 13%
14. 14.₹9000 is invested at 7% per year simple interest. What is the amount after 5 years? (a) ₹12780 (b) ₹3150 (c) ₹9630 (d) ₹12150
15. 15.₹9500 is invested at 11% per year simple interest. What is the amount after 5 years? (a) ₹14725 (b) ₹10545 (c) ₹5225 (d) ₹15770
16. 16.₹1000 is invested at 10% per year simple interest. What is the amount after 2 years? (a) ₹1100 (b) ₹200 (c) ₹1200 (d) ₹1300
17. 17.The simple interest on ₹7000 for 5 years is ₹3850. What is the rate per year? (a) 10% (b) 11% (c) 55% (d) 12%
18. 18.What is the simple interest on ₹7000 at 3% per year for 3 years? (a) ₹210 (b) ₹630 (c) ₹7630 (d) ₹840
19. 19.In how many years will ₹5000 earn ₹1200 simple interest at 8% per year? (a) 6 years (b) 2 years (c) 4 years (d) 3 years
20. 20.₹5500 is invested at 6% per year simple interest. What is the amount after 2 years? (a) ₹6160 (b) ₹660 (c) ₹5830 (d) ₹6490
21. 21.In how many years will ₹8500 earn ₹1275 simple interest at 5% per year? (a) 4 years (b) 2 years (c) 6 years (d) 3 years
22. 22.The simple interest on ₹6000 for 3 years is ₹2160. What is the rate per year? (a) 36% (b) 13% (c) 11% (d) 12%
23. 23.What is the simple interest on ₹5500 at 5% per year for 5 years? (a) ₹6875 (b) ₹1650 (c) ₹275 (d) ₹1375
24. 24.₹9000 is invested at 2% per year simple interest. What is the amount after 4 years? (a) ₹9900 (b) ₹720 (c) ₹9720 (d) ₹9180
25. 25.₹6500 is invested at 8% per year simple interest. What is the amount after 5 years? (a) ₹9620 (b) ₹2600 (c) ₹9100 (d) ₹7020
26. 26.The simple interest on ₹7500 for 3 years is ₹2250. What is the rate per year? (a) 9% (b) 10% (c) 30% (d) 11%
27. 27.In how many years will ₹9000 earn ₹2520 simple interest at 7% per year? (a) 8 years (b) 3 years (c) 4 years (d) 5 years
28. 28.The simple interest on ₹4500 for 5 years is ₹1125. What is the rate per year? (a) 4% (b) 5% (c) 6% (d) 25%
29. 29.The simple interest on ₹4000 for 2 years is ₹640. What is the rate per year? (a) 8% (b) 7% (c) 9% (d) 16%
30. 30.What is the simple interest on ₹2500 at 3% per year for 3 years? (a) ₹2725 (b) ₹75 (c) ₹225 (d) ₹300
31. 31.The simple interest on ₹9500 for 2 years is ₹570. What is the rate per year? (a) 3% (b) 6% (c) 2% (d) 4%
32. 32.₹5000 is invested at 3% per year simple interest. What is the amount after 3 years? (a) ₹450 (b) ₹5600 (c) ₹5450 (d) ₹5150
33. 33.₹3500 is invested at 2% per year simple interest. What is the amount after 4 years? (a) ₹3570 (b) ₹280 (c) ₹3850 (d) ₹3780
34. 34.The simple interest on ₹5000 for 2 years is ₹600. What is the rate per year? (a) 12% (b) 7% (c) 5% (d) 6%
35. 35.₹1500 is invested at 10% per year simple interest. What is the amount after 3 years? (a) ₹1950 (b) ₹2100 (c) ₹1650 (d) ₹450
36. 36.What is the simple interest on ₹4000 at 7% per year for 3 years? (a) ₹840 (b) ₹1120 (c) ₹280 (d) ₹4840
37. 37.The simple interest on ₹10000 for 2 years is ₹2400. What is the rate per year? (a) 24% (b) 11% (c) 13% (d) 12%
38. 38.The simple interest on ₹6000 for 4 years is ₹2400. What is the rate per year? (a) 9% (b) 10% (c) 40% (d) 11%
39. 39.The simple interest on ₹4500 for 3 years is ₹540. What is the rate per year? (a) 4% (b) 5% (c) 12% (d) 3%
40. 40.What is the simple interest on ₹2000 at 7% per year for 5 years? (a) ₹140 (b) ₹700 (c) ₹2700 (d) ₹840

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