Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 24 · 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 ₹8000 at 5% per year for 5 years? (a) ₹2400 (b) ₹2000 (c) ₹10000 (d) ₹400
2. 2.The simple interest on ₹10000 for 2 years is ₹1400. What is the rate per year? (a) 7% (b) 6% (c) 8% (d) 14%
3. 3.In how many years will ₹4500 earn ₹810 simple interest at 9% per year? (a) 2 years (b) 1 year (c) 4 years (d) 3 years
4. 4.What is the simple interest on ₹1000 at 4% per year for 2 years? (a) ₹80 (b) ₹40 (c) ₹1080 (d) ₹120
5. 5.In how many years will ₹7000 earn ₹1260 simple interest at 6% per year? (a) 2 years (b) 3 years (c) 4 years (d) 6 years
6. 6.₹6500 is invested at 4% per year simple interest. What is the amount after 3 years? (a) ₹780 (b) ₹6760 (c) ₹7280 (d) ₹7540
7. 7.The simple interest on ₹6500 for 3 years is ₹780. What is the rate per year? (a) 4% (b) 5% (c) 12% (d) 3%
8. 8.What is the simple interest on ₹3000 at 4% per year for 4 years? (a) ₹600 (b) ₹120 (c) ₹3480 (d) ₹480
9. 9.₹7500 is invested at 3% per year simple interest. What is the amount after 2 years? (a) ₹8175 (b) ₹7725 (c) ₹7950 (d) ₹450
10. 10.The simple interest on ₹7500 for 2 years is ₹900. What is the rate per year? (a) 5% (b) 7% (c) 6% (d) 12%
11. 11.The simple interest on ₹4500 for 3 years is ₹1215. What is the rate per year? (a) 27% (b) 8% (c) 9% (d) 10%
12. 12.₹4500 is invested at 6% per year simple interest. What is the amount after 3 years? (a) ₹810 (b) ₹4770 (c) ₹5310 (d) ₹5580
13. 13.₹8500 is invested at 8% per year simple interest. What is the amount after 2 years? (a) ₹1360 (b) ₹9180 (c) ₹9860 (d) ₹10540
14. 14.₹6000 is invested at 4% per year simple interest. What is the amount after 4 years? (a) ₹6240 (b) ₹6960 (c) ₹7200 (d) ₹960
15. 15.In how many years will ₹1500 earn ₹330 simple interest at 11% per year? (a) 1 year (b) 4 years (c) 3 years (d) 2 years
16. 16.₹4500 is invested at 8% per year simple interest. What is the amount after 2 years? (a) ₹4860 (b) ₹720 (c) ₹5580 (d) ₹5220
17. 17.What is the simple interest on ₹10000 at 9% per year for 5 years? (a) ₹5400 (b) ₹900 (c) ₹4500 (d) ₹14500
18. 18.What is the simple interest on ₹6000 at 8% per year for 5 years? (a) ₹2880 (b) ₹8400 (c) ₹480 (d) ₹2400
19. 19.₹2000 is invested at 6% per year simple interest. What is the amount after 2 years? (a) ₹2360 (b) ₹2240 (c) ₹2120 (d) ₹240
20. 20.₹3500 is invested at 9% per year simple interest. What is the amount after 2 years? (a) ₹4130 (b) ₹3815 (c) ₹4445 (d) ₹630
21. 21.In how many years will ₹4000 earn ₹1120 simple interest at 7% per year? (a) 3 years (b) 4 years (c) 8 years (d) 5 years
22. 22.₹5500 is invested at 9% per year simple interest. What is the amount after 2 years? (a) ₹6490 (b) ₹5995 (c) ₹6985 (d) ₹990
23. 23.In how many years will ₹10000 earn ₹5000 simple interest at 10% per year? (a) 6 years (b) 10 years (c) 5 years (d) 4 years
24. 24.₹8000 is invested at 8% per year simple interest. What is the amount after 2 years? (a) ₹8640 (b) ₹9280 (c) ₹1280 (d) ₹9920
25. 25.What is the simple interest on ₹2500 at 12% per year for 2 years? (a) ₹3100 (b) ₹900 (c) ₹600 (d) ₹300
26. 26.In how many years will ₹6000 earn ₹600 simple interest at 2% per year? (a) 4 years (b) 5 years (c) 10 years (d) 6 years
27. 27.₹3000 is invested at 3% per year simple interest. What is the amount after 3 years? (a) ₹3360 (b) ₹3270 (c) ₹270 (d) ₹3090
28. 28.What is the simple interest on ₹10000 at 8% per year for 2 years? (a) ₹1600 (b) ₹11600 (c) ₹2400 (d) ₹800
29. 29.What is the simple interest on ₹3500 at 7% per year for 3 years? (a) ₹735 (b) ₹4235 (c) ₹245 (d) ₹980
30. 30.₹5500 is invested at 7% per year simple interest. What is the amount after 2 years? (a) ₹6270 (b) ₹6655 (c) ₹5885 (d) ₹770
31. 31.In how many years will ₹6000 earn ₹2160 simple interest at 12% per year? (a) 3 years (b) 2 years (c) 4 years (d) 6 years
32. 32.In how many years will ₹4000 earn ₹480 simple interest at 4% per year? (a) 4 years (b) 2 years (c) 3 years (d) 6 years
33. 33.The simple interest on ₹6500 for 5 years is ₹3250. What is the rate per year? (a) 9% (b) 50% (c) 11% (d) 10%
34. 34.₹7000 is invested at 10% per year simple interest. What is the amount after 2 years? (a) ₹7700 (b) ₹8400 (c) ₹9100 (d) ₹1400
35. 35.In how many years will ₹9000 earn ₹1350 simple interest at 5% per year? (a) 2 years (b) 6 years (c) 3 years (d) 4 years
36. 36.What is the simple interest on ₹5000 at 3% per year for 3 years? (a) ₹150 (b) ₹600 (c) ₹5450 (d) ₹450
37. 37.The simple interest on ₹5000 for 5 years is ₹2250. What is the rate per year? (a) 10% (b) 9% (c) 45% (d) 8%
38. 38.In how many years will ₹10000 earn ₹2400 simple interest at 12% per year? (a) 2 years (b) 3 years (c) 1 year (d) 4 years
39. 39.The simple interest on ₹5500 for 4 years is ₹2200. What is the rate per year? (a) 40% (b) 9% (c) 11% (d) 10%
40. 40.₹1000 is invested at 10% per year simple interest. What is the amount after 5 years? (a) ₹1600 (b) ₹1100 (c) ₹1500 (d) ₹500

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