Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 4 · 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.₹3000 is invested at 3% per year simple interest. What is the amount after 4 years? (a) ₹3090 (b) ₹3450 (c) ₹360 (d) ₹3360
2. 2.What is the simple interest on ₹7500 at 4% per year for 4 years? (a) ₹8700 (b) ₹1200 (c) ₹300 (d) ₹1500
3. 3.In how many years will ₹2500 earn ₹750 simple interest at 6% per year? (a) 5 years (b) 10 years (c) 4 years (d) 6 years
4. 4.In how many years will ₹3500 earn ₹525 simple interest at 3% per year? (a) 5 years (b) 6 years (c) 10 years (d) 4 years
5. 5.The simple interest on ₹5500 for 5 years is ₹1100. What is the rate per year? (a) 5% (b) 20% (c) 4% (d) 3%
6. 6.In how many years will ₹5500 earn ₹660 simple interest at 6% per year? (a) 3 years (b) 1 year (c) 2 years (d) 4 years
7. 7.₹2500 is invested at 8% per year simple interest. What is the amount after 5 years? (a) ₹2700 (b) ₹3700 (c) ₹1000 (d) ₹3500
8. 8.What is the simple interest on ₹2500 at 2% per year for 3 years? (a) ₹50 (b) ₹200 (c) ₹2650 (d) ₹150
9. 9.₹3000 is invested at 11% per year simple interest. What is the amount after 3 years? (a) ₹4320 (b) ₹990 (c) ₹3990 (d) ₹3330
10. 10.The simple interest on ₹6000 for 5 years is ₹3600. What is the rate per year? (a) 11% (b) 13% (c) 60% (d) 12%
11. 11.What is the simple interest on ₹6000 at 5% per year for 5 years? (a) ₹1800 (b) ₹300 (c) ₹7500 (d) ₹1500
12. 12.The simple interest on ₹4500 for 3 years is ₹1620. What is the rate per year? (a) 12% (b) 11% (c) 13% (d) 36%
13. 13.The simple interest on ₹1000 for 3 years is ₹60. What is the rate per year? (a) 3% (b) 1% (c) 6% (d) 2%
14. 14.In how many years will ₹3500 earn ₹770 simple interest at 11% per year? (a) 4 years (b) 2 years (c) 1 year (d) 3 years
15. 15.In how many years will ₹1000 earn ₹80 simple interest at 4% per year? (a) 3 years (b) 4 years (c) 1 year (d) 2 years
16. 16.In how many years will ₹2000 earn ₹480 simple interest at 8% per year? (a) 4 years (b) 6 years (c) 3 years (d) 2 years
17. 17.In how many years will ₹2500 earn ₹250 simple interest at 2% per year? (a) 10 years (b) 4 years (c) 5 years (d) 6 years
18. 18.₹3500 is invested at 2% per year simple interest. What is the amount after 3 years? (a) ₹3710 (b) ₹3780 (c) ₹210 (d) ₹3570
19. 19.₹3000 is invested at 10% per year simple interest. What is the amount after 4 years? (a) ₹3300 (b) ₹1200 (c) ₹4200 (d) ₹4500
20. 20.In how many years will ₹10000 earn ₹800 simple interest at 4% per year? (a) 1 year (b) 3 years (c) 2 years (d) 4 years
21. 21.In how many years will ₹7500 earn ₹1125 simple interest at 3% per year? (a) 6 years (b) 5 years (c) 4 years (d) 10 years
22. 22.What is the simple interest on ₹3500 at 11% per year for 3 years? (a) ₹4655 (b) ₹1155 (c) ₹385 (d) ₹1540
23. 23.The simple interest on ₹1500 for 5 years is ₹750. What is the rate per year? (a) 50% (b) 11% (c) 10% (d) 9%
24. 24.The simple interest on ₹2500 for 5 years is ₹1000. What is the rate per year? (a) 40% (b) 9% (c) 7% (d) 8%
25. 25.In how many years will ₹4000 earn ₹1320 simple interest at 11% per year? (a) 2 years (b) 4 years (c) 3 years (d) 6 years
26. 26.What is the simple interest on ₹9000 at 8% per year for 5 years? (a) ₹12600 (b) ₹4320 (c) ₹3600 (d) ₹720
27. 27.The simple interest on ₹10000 for 4 years is ₹2400. What is the rate per year? (a) 7% (b) 24% (c) 5% (d) 6%
28. 28.In how many years will ₹1000 earn ₹250 simple interest at 5% per year? (a) 6 years (b) 4 years (c) 10 years (d) 5 years
29. 29.What is the simple interest on ₹5000 at 6% per year for 4 years? (a) ₹300 (b) ₹6200 (c) ₹1200 (d) ₹1500
30. 30.The simple interest on ₹3000 for 3 years is ₹360. What is the rate per year? (a) 12% (b) 3% (c) 4% (d) 5%
31. 31.₹4000 is invested at 10% per year simple interest. What is the amount after 4 years? (a) ₹5600 (b) ₹4400 (c) ₹1600 (d) ₹6000
32. 32.₹2000 is invested at 9% per year simple interest. What is the amount after 4 years? (a) ₹720 (b) ₹2900 (c) ₹2720 (d) ₹2180
33. 33.₹10000 is invested at 8% per year simple interest. What is the amount after 3 years? (a) ₹2400 (b) ₹13200 (c) ₹10800 (d) ₹12400
34. 34.In how many years will ₹6500 earn ₹2600 simple interest at 10% per year? (a) 8 years (b) 3 years (c) 4 years (d) 5 years
35. 35.In how many years will ₹4000 earn ₹720 simple interest at 6% per year? (a) 3 years (b) 4 years (c) 2 years (d) 6 years
36. 36.₹8500 is invested at 4% per year simple interest. What is the amount after 4 years? (a) ₹9860 (b) ₹8840 (c) ₹10200 (d) ₹1360
37. 37.The simple interest on ₹6000 for 2 years is ₹360. What is the rate per year? (a) 4% (b) 3% (c) 2% (d) 6%
38. 38.₹3000 is invested at 9% per year simple interest. What is the amount after 5 years? (a) ₹3270 (b) ₹4350 (c) ₹1350 (d) ₹4620
39. 39.The simple interest on ₹2000 for 5 years is ₹800. What is the rate per year? (a) 7% (b) 9% (c) 8% (d) 40%
40. 40.The simple interest on ₹9000 for 3 years is ₹2160. What is the rate per year? (a) 9% (b) 7% (c) 8% (d) 24%

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