Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 909 · 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 ₹4500 for 2 years is ₹1080. What is the rate per year? (a) 12% (b) 13% (c) 24% (d) 11%
2. 2.What is the simple interest on ₹10000 at 10% per year for 5 years? (a) ₹1000 (b) ₹5000 (c) ₹6000 (d) ₹15000
3. 3.In how many years will ₹7500 earn ₹1800 simple interest at 12% per year? (a) 3 years (b) 1 year (c) 4 years (d) 2 years
4. 4.₹6000 is invested at 12% per year simple interest. What is the amount after 3 years? (a) ₹2160 (b) ₹8880 (c) ₹6720 (d) ₹8160
5. 5.The simple interest on ₹7000 for 2 years is ₹420. What is the rate per year? (a) 6% (b) 4% (c) 3% (d) 2%
6. 6.What is the simple interest on ₹1500 at 8% per year for 4 years? (a) ₹600 (b) ₹480 (c) ₹1980 (d) ₹120
7. 7.The simple interest on ₹3500 for 5 years is ₹1925. What is the rate per year? (a) 55% (b) 12% (c) 11% (d) 10%
8. 8.The simple interest on ₹1500 for 4 years is ₹420. What is the rate per year? (a) 7% (b) 8% (c) 6% (d) 28%
9. 9.What is the simple interest on ₹7500 at 4% per year for 5 years? (a) ₹9000 (b) ₹300 (c) ₹1500 (d) ₹1800
10. 10.In how many years will ₹3000 earn ₹540 simple interest at 6% per year? (a) 3 years (b) 4 years (c) 6 years (d) 2 years
11. 11.₹8500 is invested at 2% per year simple interest. What is the amount after 2 years? (a) ₹8670 (b) ₹340 (c) ₹8840 (d) ₹9010
12. 12.₹7000 is invested at 10% per year simple interest. What is the amount after 3 years? (a) ₹2100 (b) ₹9100 (c) ₹7700 (d) ₹9800
13. 13.In how many years will ₹4500 earn ₹720 simple interest at 8% per year? (a) 1 year (b) 3 years (c) 4 years (d) 2 years
14. 14.In how many years will ₹5000 earn ₹1000 simple interest at 10% per year? (a) 3 years (b) 4 years (c) 2 years (d) 1 year
15. 15.What is the simple interest on ₹10000 at 6% per year for 4 years? (a) ₹3000 (b) ₹12400 (c) ₹600 (d) ₹2400
16. 16.In how many years will ₹8000 earn ₹720 simple interest at 3% per year? (a) 6 years (b) 3 years (c) 2 years (d) 4 years
17. 17.What is the simple interest on ₹2500 at 6% per year for 3 years? (a) ₹600 (b) ₹450 (c) ₹150 (d) ₹2950
18. 18.₹7000 is invested at 10% per year simple interest. What is the amount after 5 years? (a) ₹7700 (b) ₹3500 (c) ₹11200 (d) ₹10500
19. 19.In how many years will ₹4000 earn ₹1440 simple interest at 12% per year? (a) 4 years (b) 2 years (c) 6 years (d) 3 years
20. 20.What is the simple interest on ₹7000 at 2% per year for 5 years? (a) ₹7700 (b) ₹140 (c) ₹700 (d) ₹840
21. 21.In how many years will ₹2000 earn ₹120 simple interest at 2% per year? (a) 2 years (b) 6 years (c) 4 years (d) 3 years
22. 22.What is the simple interest on ₹1000 at 3% per year for 3 years? (a) ₹90 (b) ₹1090 (c) ₹30 (d) ₹120
23. 23.₹1500 is invested at 12% per year simple interest. What is the amount after 3 years? (a) ₹540 (b) ₹2040 (c) ₹1680 (d) ₹2220
24. 24.₹1500 is invested at 7% per year simple interest. What is the amount after 2 years? (a) ₹1815 (b) ₹210 (c) ₹1710 (d) ₹1605
25. 25.The simple interest on ₹3000 for 4 years is ₹360. What is the rate per year? (a) 4% (b) 2% (c) 12% (d) 3%
26. 26.What is the simple interest on ₹7000 at 5% per year for 3 years? (a) ₹350 (b) ₹1400 (c) ₹1050 (d) ₹8050
27. 27.In how many years will ₹7500 earn ₹1875 simple interest at 5% per year? (a) 6 years (b) 4 years (c) 10 years (d) 5 years
28. 28.The simple interest on ₹7500 for 2 years is ₹1050. What is the rate per year? (a) 7% (b) 8% (c) 14% (d) 6%
29. 29.₹3000 is invested at 11% per year simple interest. What is the amount after 4 years? (a) ₹1320 (b) ₹4650 (c) ₹3330 (d) ₹4320
30. 30.What is the simple interest on ₹1500 at 2% per year for 5 years? (a) ₹180 (b) ₹1650 (c) ₹30 (d) ₹150
31. 31.What is the simple interest on ₹9000 at 2% per year for 3 years? (a) ₹180 (b) ₹9540 (c) ₹720 (d) ₹540
32. 32.In how many years will ₹8500 earn ₹2295 simple interest at 9% per year? (a) 4 years (b) 6 years (c) 2 years (d) 3 years
33. 33.What is the simple interest on ₹5000 at 4% per year for 4 years? (a) ₹1000 (b) ₹200 (c) ₹800 (d) ₹5800
34. 34.What is the simple interest on ₹5000 at 6% per year for 3 years? (a) ₹5900 (b) ₹300 (c) ₹1200 (d) ₹900
35. 35.₹3500 is invested at 10% per year simple interest. What is the amount after 3 years? (a) ₹4900 (b) ₹4550 (c) ₹3850 (d) ₹1050
36. 36.The simple interest on ₹2000 for 2 years is ₹120. What is the rate per year? (a) 6% (b) 2% (c) 4% (d) 3%
37. 37.What is the simple interest on ₹4500 at 9% per year for 2 years? (a) ₹405 (b) ₹810 (c) ₹5310 (d) ₹1215
38. 38.In how many years will ₹10000 earn ₹3200 simple interest at 8% per year? (a) 8 years (b) 3 years (c) 5 years (d) 4 years
39. 39.₹7500 is invested at 6% per year simple interest. What is the amount after 4 years? (a) ₹1800 (b) ₹9750 (c) ₹9300 (d) ₹7950
40. 40.₹2000 is invested at 4% per year simple interest. What is the amount after 5 years? (a) ₹400 (b) ₹2480 (c) ₹2080 (d) ₹2400

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