Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 891 · 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 ₹2000 at 9% per year for 4 years? (a) ₹2720 (b) ₹720 (c) ₹900 (d) ₹180
2. 2.In how many years will ₹1500 earn ₹450 simple interest at 10% per year? (a) 2 years (b) 3 years (c) 6 years (d) 4 years
3. 3.₹6000 is invested at 3% per year simple interest. What is the amount after 4 years? (a) ₹6720 (b) ₹6900 (c) ₹6180 (d) ₹720
4. 4.The simple interest on ₹1500 for 4 years is ₹360. What is the rate per year? (a) 5% (b) 24% (c) 6% (d) 7%
5. 5.The simple interest on ₹7500 for 2 years is ₹1050. What is the rate per year? (a) 14% (b) 6% (c) 7% (d) 8%
6. 6.₹5500 is invested at 2% per year simple interest. What is the amount after 3 years? (a) ₹330 (b) ₹5830 (c) ₹5610 (d) ₹5940
7. 7.What is the simple interest on ₹5000 at 4% per year for 2 years? (a) ₹5400 (b) ₹200 (c) ₹400 (d) ₹600
8. 8.The simple interest on ₹8500 for 2 years is ₹510. What is the rate per year? (a) 2% (b) 4% (c) 6% (d) 3%
9. 9.The simple interest on ₹5500 for 3 years is ₹1650. What is the rate per year? (a) 11% (b) 30% (c) 9% (d) 10%
10. 10.In how many years will ₹9000 earn ₹360 simple interest at 2% per year? (a) 1 year (b) 2 years (c) 4 years (d) 3 years
11. 11.What is the simple interest on ₹2000 at 2% per year for 2 years? (a) ₹80 (b) ₹40 (c) ₹120 (d) ₹2080
12. 12.What is the simple interest on ₹6000 at 12% per year for 3 years? (a) ₹2880 (b) ₹2160 (c) ₹720 (d) ₹8160
13. 13.₹8000 is invested at 11% per year simple interest. What is the amount after 2 years? (a) ₹10640 (b) ₹1760 (c) ₹9760 (d) ₹8880
14. 14.The simple interest on ₹6000 for 2 years is ₹240. What is the rate per year? (a) 4% (b) 2% (c) 3% (d) 1%
15. 15.In how many years will ₹3500 earn ₹2100 simple interest at 12% per year? (a) 5 years (b) 10 years (c) 6 years (d) 4 years
16. 16.₹9500 is invested at 9% per year simple interest. What is the amount after 3 years? (a) ₹12920 (b) ₹12065 (c) ₹10355 (d) ₹2565
17. 17.The simple interest on ₹1000 for 5 years is ₹300. What is the rate per year? (a) 7% (b) 5% (c) 6% (d) 30%
18. 18.₹9000 is invested at 12% per year simple interest. What is the amount after 2 years? (a) ₹12240 (b) ₹11160 (c) ₹10080 (d) ₹2160
19. 19.What is the simple interest on ₹5500 at 2% per year for 2 years? (a) ₹110 (b) ₹220 (c) ₹330 (d) ₹5720
20. 20.The simple interest on ₹7500 for 5 years is ₹3750. What is the rate per year? (a) 9% (b) 10% (c) 50% (d) 11%
21. 21.In how many years will ₹6000 earn ₹2160 simple interest at 9% per year? (a) 3 years (b) 5 years (c) 8 years (d) 4 years
22. 22.What is the simple interest on ₹8500 at 10% per year for 2 years? (a) ₹10200 (b) ₹1700 (c) ₹2550 (d) ₹850
23. 23.In how many years will ₹2500 earn ₹1500 simple interest at 12% per year? (a) 6 years (b) 4 years (c) 10 years (d) 5 years
24. 24.The simple interest on ₹5000 for 5 years is ₹1250. What is the rate per year? (a) 5% (b) 6% (c) 4% (d) 25%
25. 25.₹6000 is invested at 7% per year simple interest. What is the amount after 2 years? (a) ₹840 (b) ₹6840 (c) ₹7260 (d) ₹6420
26. 26.What is the simple interest on ₹1500 at 7% per year for 3 years? (a) ₹315 (b) ₹105 (c) ₹1815 (d) ₹420
27. 27.What is the simple interest on ₹3500 at 7% per year for 4 years? (a) ₹1225 (b) ₹245 (c) ₹980 (d) ₹4480
28. 28.What is the simple interest on ₹1500 at 3% per year for 5 years? (a) ₹225 (b) ₹1725 (c) ₹45 (d) ₹270
29. 29.₹3000 is invested at 7% per year simple interest. What is the amount after 4 years? (a) ₹840 (b) ₹4050 (c) ₹3840 (d) ₹3210
30. 30.In how many years will ₹8500 earn ₹1360 simple interest at 8% per year? (a) 2 years (b) 3 years (c) 1 year (d) 4 years
31. 31.The simple interest on ₹6500 for 2 years is ₹260. What is the rate per year? (a) 4% (b) 1% (c) 3% (d) 2%
32. 32.What is the simple interest on ₹8000 at 4% per year for 4 years? (a) ₹320 (b) ₹1600 (c) ₹9280 (d) ₹1280
33. 33.In how many years will ₹8000 earn ₹2880 simple interest at 12% per year? (a) 6 years (b) 4 years (c) 3 years (d) 2 years
34. 34.In how many years will ₹9000 earn ₹2700 simple interest at 6% per year? (a) 4 years (b) 6 years (c) 5 years (d) 10 years
35. 35.What is the simple interest on ₹4500 at 5% per year for 2 years? (a) ₹225 (b) ₹4950 (c) ₹675 (d) ₹450
36. 36.₹4500 is invested at 5% per year simple interest. What is the amount after 4 years? (a) ₹5625 (b) ₹900 (c) ₹4725 (d) ₹5400
37. 37.₹5500 is invested at 7% per year simple interest. What is the amount after 3 years? (a) ₹1155 (b) ₹7040 (c) ₹5885 (d) ₹6655
38. 38.What is the simple interest on ₹1500 at 5% per year for 2 years? (a) ₹75 (b) ₹1650 (c) ₹225 (d) ₹150
39. 39.The simple interest on ₹8500 for 4 years is ₹2380. What is the rate per year? (a) 7% (b) 6% (c) 8% (d) 28%
40. 40.What is the simple interest on ₹5500 at 6% per year for 2 years? (a) ₹330 (b) ₹990 (c) ₹660 (d) ₹6160

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