Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 584 · 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.₹6500 is invested at 10% per year simple interest. What is the amount after 2 years? (a) ₹7800 (b) ₹7150 (c) ₹8450 (d) ₹1300
2. 2.In how many years will ₹5000 earn ₹500 simple interest at 2% per year? (a) 10 years (b) 6 years (c) 5 years (d) 4 years
3. 3.The simple interest on ₹2000 for 4 years is ₹880. What is the rate per year? (a) 10% (b) 11% (c) 12% (d) 44%
4. 4.The simple interest on ₹2500 for 3 years is ₹525. What is the rate per year? (a) 7% (b) 6% (c) 8% (d) 21%
5. 5.What is the simple interest on ₹7500 at 3% per year for 2 years? (a) ₹450 (b) ₹7950 (c) ₹675 (d) ₹225
6. 6.What is the simple interest on ₹8500 at 11% per year for 2 years? (a) ₹1870 (b) ₹935 (c) ₹2805 (d) ₹10370
7. 7.What is the simple interest on ₹6500 at 4% per year for 3 years? (a) ₹780 (b) ₹1040 (c) ₹260 (d) ₹7280
8. 8.The simple interest on ₹1500 for 5 years is ₹150. What is the rate per year? (a) 10% (b) 3% (c) 1% (d) 2%
9. 9.₹4000 is invested at 8% per year simple interest. What is the amount after 2 years? (a) ₹4960 (b) ₹4320 (c) ₹640 (d) ₹4640
10. 10.The simple interest on ₹2000 for 2 years is ₹320. What is the rate per year? (a) 9% (b) 7% (c) 8% (d) 16%
11. 11.In how many years will ₹1500 earn ₹900 simple interest at 12% per year? (a) 5 years (b) 4 years (c) 6 years (d) 10 years
12. 12.In how many years will ₹8000 earn ₹1440 simple interest at 9% per year? (a) 3 years (b) 1 year (c) 2 years (d) 4 years
13. 13.₹5000 is invested at 4% per year simple interest. What is the amount after 3 years? (a) ₹5800 (b) ₹5200 (c) ₹5600 (d) ₹600
14. 14.What is the simple interest on ₹6000 at 2% per year for 2 years? (a) ₹360 (b) ₹240 (c) ₹6240 (d) ₹120
15. 15.In how many years will ₹3000 earn ₹1440 simple interest at 12% per year? (a) 5 years (b) 3 years (c) 8 years (d) 4 years
16. 16.The simple interest on ₹3000 for 2 years is ₹480. What is the rate per year? (a) 16% (b) 7% (c) 8% (d) 9%
17. 17.What is the simple interest on ₹5500 at 6% per year for 3 years? (a) ₹6490 (b) ₹330 (c) ₹1320 (d) ₹990
18. 18.The simple interest on ₹1000 for 3 years is ₹120. What is the rate per year? (a) 3% (b) 12% (c) 4% (d) 5%
19. 19.₹5500 is invested at 11% per year simple interest. What is the amount after 4 years? (a) ₹8525 (b) ₹7920 (c) ₹2420 (d) ₹6105
20. 20.₹5500 is invested at 6% per year simple interest. What is the amount after 2 years? (a) ₹660 (b) ₹6160 (c) ₹5830 (d) ₹6490
21. 21.₹1500 is invested at 2% per year simple interest. What is the amount after 2 years? (a) ₹1530 (b) ₹60 (c) ₹1590 (d) ₹1560
22. 22.The simple interest on ₹8000 for 4 years is ₹1280. What is the rate per year? (a) 16% (b) 3% (c) 5% (d) 4%
23. 23.₹1500 is invested at 5% per year simple interest. What is the amount after 2 years? (a) ₹1725 (b) ₹1650 (c) ₹150 (d) ₹1575
24. 24.The simple interest on ₹7000 for 2 years is ₹1680. What is the rate per year? (a) 11% (b) 12% (c) 24% (d) 13%
25. 25.In how many years will ₹2000 earn ₹400 simple interest at 5% per year? (a) 5 years (b) 8 years (c) 4 years (d) 3 years
26. 26.₹3500 is invested at 10% per year simple interest. What is the amount after 2 years? (a) ₹4550 (b) ₹4200 (c) ₹700 (d) ₹3850
27. 27.What is the simple interest on ₹9000 at 6% per year for 2 years? (a) ₹540 (b) ₹10080 (c) ₹1620 (d) ₹1080
28. 28.In how many years will ₹1500 earn ₹675 simple interest at 9% per year? (a) 6 years (b) 4 years (c) 10 years (d) 5 years
29. 29.What is the simple interest on ₹2500 at 7% per year for 4 years? (a) ₹875 (b) ₹175 (c) ₹3200 (d) ₹700
30. 30.In how many years will ₹3000 earn ₹120 simple interest at 2% per year? (a) 1 year (b) 4 years (c) 2 years (d) 3 years
31. 31.₹6500 is invested at 6% per year simple interest. What is the amount after 2 years? (a) ₹7670 (b) ₹7280 (c) ₹6890 (d) ₹780
32. 32.The simple interest on ₹8000 for 3 years is ₹1200. What is the rate per year? (a) 15% (b) 4% (c) 6% (d) 5%
33. 33.The simple interest on ₹4500 for 3 years is ₹1080. What is the rate per year? (a) 24% (b) 8% (c) 9% (d) 7%
34. 34.What is the simple interest on ₹1000 at 12% per year for 2 years? (a) ₹1240 (b) ₹120 (c) ₹360 (d) ₹240
35. 35.In how many years will ₹9000 earn ₹720 simple interest at 4% per year? (a) 3 years (b) 2 years (c) 1 year (d) 4 years
36. 36.The simple interest on ₹5500 for 3 years is ₹1815. What is the rate per year? (a) 12% (b) 33% (c) 10% (d) 11%
37. 37.What is the simple interest on ₹6500 at 9% per year for 3 years? (a) ₹8255 (b) ₹2340 (c) ₹1755 (d) ₹585
38. 38.In how many years will ₹5500 earn ₹1100 simple interest at 10% per year? (a) 2 years (b) 1 year (c) 3 years (d) 4 years
39. 39.What is the simple interest on ₹6500 at 10% per year for 3 years? (a) ₹650 (b) ₹1950 (c) ₹8450 (d) ₹2600
40. 40.What is the simple interest on ₹6500 at 10% per year for 4 years? (a) ₹3250 (b) ₹2600 (c) ₹9100 (d) ₹650

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