Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 348 · 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.What is the simple interest on ₹3000 at 6% per year for 2 years? (a) ₹360 (b) ₹540 (c) ₹3360 (d) ₹180
2. 2.What is the simple interest on ₹1000 at 2% per year for 4 years? (a) ₹100 (b) ₹20 (c) ₹1080 (d) ₹80
3. 3.₹1500 is invested at 7% per year simple interest. What is the amount after 3 years? (a) ₹315 (b) ₹1605 (c) ₹1920 (d) ₹1815
4. 4.₹4000 is invested at 2% per year simple interest. What is the amount after 5 years? (a) ₹4400 (b) ₹4080 (c) ₹4480 (d) ₹400
5. 5.What is the simple interest on ₹9000 at 3% per year for 5 years? (a) ₹1620 (b) ₹10350 (c) ₹270 (d) ₹1350
6. 6.The simple interest on ₹10000 for 4 years is ₹3200. What is the rate per year? (a) 8% (b) 9% (c) 32% (d) 7%
7. 7.₹8000 is invested at 8% per year simple interest. What is the amount after 5 years? (a) ₹11840 (b) ₹3200 (c) ₹11200 (d) ₹8640
8. 8.₹9000 is invested at 2% per year simple interest. What is the amount after 5 years? (a) ₹9900 (b) ₹900 (c) ₹10080 (d) ₹9180
9. 9.What is the simple interest on ₹6500 at 2% per year for 2 years? (a) ₹260 (b) ₹130 (c) ₹390 (d) ₹6760
10. 10.₹8000 is invested at 5% per year simple interest. What is the amount after 4 years? (a) ₹1600 (b) ₹10000 (c) ₹9600 (d) ₹8400
11. 11.What is the simple interest on ₹5000 at 2% per year for 5 years? (a) ₹5500 (b) ₹600 (c) ₹500 (d) ₹100
12. 12.₹9000 is invested at 11% per year simple interest. What is the amount after 3 years? (a) ₹12960 (b) ₹11970 (c) ₹9990 (d) ₹2970
13. 13.In how many years will ₹6500 earn ₹1300 simple interest at 10% per year? (a) 3 years (b) 4 years (c) 2 years (d) 1 year
14. 14.In how many years will ₹2500 earn ₹750 simple interest at 10% per year? (a) 6 years (b) 4 years (c) 2 years (d) 3 years
15. 15.The simple interest on ₹1500 for 4 years is ₹720. What is the rate per year? (a) 48% (b) 12% (c) 13% (d) 11%
16. 16.₹2000 is invested at 10% per year simple interest. What is the amount after 2 years? (a) ₹2200 (b) ₹2600 (c) ₹2400 (d) ₹400
17. 17.The simple interest on ₹9000 for 4 years is ₹2520. What is the rate per year? (a) 7% (b) 28% (c) 6% (d) 8%
18. 18.₹2000 is invested at 4% per year simple interest. What is the amount after 2 years? (a) ₹2240 (b) ₹2080 (c) ₹160 (d) ₹2160
19. 19.The simple interest on ₹1000 for 3 years is ₹300. What is the rate per year? (a) 9% (b) 30% (c) 10% (d) 11%
20. 20.The simple interest on ₹7000 for 4 years is ₹2520. What is the rate per year? (a) 36% (b) 10% (c) 9% (d) 8%
21. 21.₹7500 is invested at 5% per year simple interest. What is the amount after 3 years? (a) ₹7875 (b) ₹9000 (c) ₹8625 (d) ₹1125
22. 22.The simple interest on ₹2500 for 3 years is ₹225. What is the rate per year? (a) 2% (b) 9% (c) 3% (d) 4%
23. 23.In how many years will ₹4000 earn ₹720 simple interest at 6% per year? (a) 2 years (b) 6 years (c) 4 years (d) 3 years
24. 24.₹2500 is invested at 5% per year simple interest. What is the amount after 4 years? (a) ₹3000 (b) ₹3125 (c) ₹500 (d) ₹2625
25. 25.What is the simple interest on ₹6500 at 3% per year for 3 years? (a) ₹780 (b) ₹585 (c) ₹7085 (d) ₹195
26. 26.The simple interest on ₹1500 for 4 years is ₹240. What is the rate per year? (a) 4% (b) 16% (c) 5% (d) 3%
27. 27.In how many years will ₹1000 earn ₹250 simple interest at 5% per year? (a) 4 years (b) 10 years (c) 6 years (d) 5 years
28. 28.₹8000 is invested at 7% per year simple interest. What is the amount after 3 years? (a) ₹1680 (b) ₹9680 (c) ₹10240 (d) ₹8560
29. 29.₹6500 is invested at 8% per year simple interest. What is the amount after 5 years? (a) ₹9620 (b) ₹2600 (c) ₹7020 (d) ₹9100
30. 30.What is the simple interest on ₹3000 at 5% per year for 2 years? (a) ₹150 (b) ₹450 (c) ₹300 (d) ₹3300
31. 31.In how many years will ₹7500 earn ₹1800 simple interest at 8% per year? (a) 4 years (b) 2 years (c) 3 years (d) 6 years
32. 32.What is the simple interest on ₹3500 at 8% per year for 5 years? (a) ₹1400 (b) ₹1680 (c) ₹4900 (d) ₹280
33. 33.What is the simple interest on ₹1500 at 5% per year for 3 years? (a) ₹300 (b) ₹225 (c) ₹75 (d) ₹1725
34. 34.In how many years will ₹3500 earn ₹1400 simple interest at 10% per year? (a) 4 years (b) 8 years (c) 3 years (d) 5 years
35. 35.The simple interest on ₹8000 for 4 years is ₹2240. What is the rate per year? (a) 28% (b) 6% (c) 8% (d) 7%
36. 36.The simple interest on ₹1000 for 2 years is ₹80. What is the rate per year? (a) 5% (b) 4% (c) 3% (d) 8%
37. 37.What is the simple interest on ₹8500 at 3% per year for 5 years? (a) ₹255 (b) ₹9775 (c) ₹1275 (d) ₹1530
38. 38.The simple interest on ₹9500 for 3 years is ₹2565. What is the rate per year? (a) 27% (b) 8% (c) 9% (d) 10%
39. 39.The simple interest on ₹4000 for 4 years is ₹1440. What is the rate per year? (a) 10% (b) 9% (c) 8% (d) 36%
40. 40.₹4000 is invested at 7% per year simple interest. What is the amount after 3 years? (a) ₹4840 (b) ₹5120 (c) ₹840 (d) ₹4280

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