Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 450 · 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.The simple interest on ₹8000 for 4 years is ₹3520. What is the rate per year? (a) 10% (b) 44% (c) 11% (d) 12%
2. 2.The simple interest on ₹4000 for 3 years is ₹480. What is the rate per year? (a) 3% (b) 5% (c) 12% (d) 4%
3. 3.In how many years will ₹4500 earn ₹450 simple interest at 2% per year? (a) 5 years (b) 6 years (c) 10 years (d) 4 years
4. 4.The simple interest on ₹7500 for 5 years is ₹1500. What is the rate per year? (a) 20% (b) 3% (c) 5% (d) 4%
5. 5.What is the simple interest on ₹1500 at 8% per year for 2 years? (a) ₹240 (b) ₹120 (c) ₹360 (d) ₹1740
6. 6.The simple interest on ₹10000 for 4 years is ₹2000. What is the rate per year? (a) 4% (b) 20% (c) 6% (d) 5%
7. 7.₹8000 is invested at 4% per year simple interest. What is the amount after 5 years? (a) ₹9600 (b) ₹1600 (c) ₹8320 (d) ₹9920
8. 8.What is the simple interest on ₹7000 at 5% per year for 5 years? (a) ₹1750 (b) ₹2100 (c) ₹350 (d) ₹8750
9. 9.₹5000 is invested at 5% per year simple interest. What is the amount after 3 years? (a) ₹6000 (b) ₹5750 (c) ₹750 (d) ₹5250
10. 10.In how many years will ₹3500 earn ₹420 simple interest at 4% per year? (a) 6 years (b) 4 years (c) 2 years (d) 3 years
11. 11.What is the simple interest on ₹2000 at 5% per year for 5 years? (a) ₹600 (b) ₹100 (c) ₹2500 (d) ₹500
12. 12.What is the simple interest on ₹7000 at 12% per year for 3 years? (a) ₹840 (b) ₹9520 (c) ₹3360 (d) ₹2520
13. 13.What is the simple interest on ₹5000 at 11% per year for 3 years? (a) ₹1650 (b) ₹6650 (c) ₹2200 (d) ₹550
14. 14.In how many years will ₹3000 earn ₹900 simple interest at 6% per year? (a) 6 years (b) 5 years (c) 10 years (d) 4 years
15. 15.₹4000 is invested at 6% per year simple interest. What is the amount after 3 years? (a) ₹4240 (b) ₹4960 (c) ₹4720 (d) ₹720
16. 16.₹5500 is invested at 5% per year simple interest. What is the amount after 3 years? (a) ₹825 (b) ₹6325 (c) ₹6600 (d) ₹5775
17. 17.In how many years will ₹8000 earn ₹3200 simple interest at 10% per year? (a) 4 years (b) 5 years (c) 8 years (d) 3 years
18. 18.₹4500 is invested at 6% per year simple interest. What is the amount after 5 years? (a) ₹6120 (b) ₹5850 (c) ₹4770 (d) ₹1350
19. 19.What is the simple interest on ₹5000 at 12% per year for 5 years? (a) ₹3000 (b) ₹3600 (c) ₹8000 (d) ₹600
20. 20.What is the simple interest on ₹1500 at 12% per year for 2 years? (a) ₹1860 (b) ₹180 (c) ₹360 (d) ₹540
21. 21.The simple interest on ₹9500 for 4 years is ₹4560. What is the rate per year? (a) 13% (b) 12% (c) 11% (d) 48%
22. 22.₹8000 is invested at 9% per year simple interest. What is the amount after 3 years? (a) ₹8720 (b) ₹10880 (c) ₹2160 (d) ₹10160
23. 23.₹8500 is invested at 5% per year simple interest. What is the amount after 2 years? (a) ₹9350 (b) ₹9775 (c) ₹850 (d) ₹8925
24. 24.₹5500 is invested at 6% per year simple interest. What is the amount after 3 years? (a) ₹990 (b) ₹6820 (c) ₹6490 (d) ₹5830
25. 25.The simple interest on ₹10000 for 4 years is ₹1200. What is the rate per year? (a) 4% (b) 2% (c) 12% (d) 3%
26. 26.In how many years will ₹6000 earn ₹540 simple interest at 3% per year? (a) 2 years (b) 3 years (c) 4 years (d) 6 years
27. 27.In how many years will ₹5000 earn ₹800 simple interest at 8% per year? (a) 1 year (b) 2 years (c) 3 years (d) 4 years
28. 28.The simple interest on ₹2500 for 3 years is ₹900. What is the rate per year? (a) 13% (b) 12% (c) 11% (d) 36%
29. 29.In how many years will ₹10000 earn ₹400 simple interest at 2% per year? (a) 4 years (b) 3 years (c) 1 year (d) 2 years
30. 30.What is the simple interest on ₹6000 at 7% per year for 4 years? (a) ₹7680 (b) ₹420 (c) ₹1680 (d) ₹2100
31. 31.In how many years will ₹6500 earn ₹2860 simple interest at 11% per year? (a) 8 years (b) 3 years (c) 5 years (d) 4 years
32. 32.₹7000 is invested at 6% per year simple interest. What is the amount after 3 years? (a) ₹7420 (b) ₹8260 (c) ₹1260 (d) ₹8680
33. 33.₹5000 is invested at 5% per year simple interest. What is the amount after 2 years? (a) ₹5500 (b) ₹5750 (c) ₹500 (d) ₹5250
34. 34.The simple interest on ₹3000 for 2 years is ₹360. What is the rate per year? (a) 5% (b) 7% (c) 6% (d) 12%
35. 35.The simple interest on ₹9000 for 4 years is ₹2160. What is the rate per year? (a) 5% (b) 24% (c) 7% (d) 6%
36. 36.The simple interest on ₹8000 for 2 years is ₹1760. What is the rate per year? (a) 11% (b) 12% (c) 10% (d) 22%
37. 37.₹9500 is invested at 8% per year simple interest. What is the amount after 2 years? (a) ₹1520 (b) ₹11020 (c) ₹10260 (d) ₹11780
38. 38.₹4500 is invested at 8% per year simple interest. What is the amount after 3 years? (a) ₹5580 (b) ₹4860 (c) ₹1080 (d) ₹5940
39. 39.What is the simple interest on ₹6500 at 5% per year for 5 years? (a) ₹1950 (b) ₹1625 (c) ₹325 (d) ₹8125
40. 40.₹3000 is invested at 5% per year simple interest. What is the amount after 2 years? (a) ₹3300 (b) ₹300 (c) ₹3150 (d) ₹3450

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