Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 724 · 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.In how many years will ₹10000 earn ₹1800 simple interest at 9% per year? (a) 4 years (b) 2 years (c) 1 year (d) 3 years
2. 2.What is the simple interest on ₹8500 at 11% per year for 2 years? (a) ₹10370 (b) ₹935 (c) ₹2805 (d) ₹1870
3. 3.₹6000 is invested at 9% per year simple interest. What is the amount after 5 years? (a) ₹8700 (b) ₹6540 (c) ₹9240 (d) ₹2700
4. 4.The simple interest on ₹10000 for 2 years is ₹2400. What is the rate per year? (a) 12% (b) 24% (c) 11% (d) 13%
5. 5.In how many years will ₹7500 earn ₹1875 simple interest at 5% per year? (a) 5 years (b) 6 years (c) 4 years (d) 10 years
6. 6.₹10000 is invested at 10% per year simple interest. What is the amount after 5 years? (a) ₹15000 (b) ₹11000 (c) ₹5000 (d) ₹16000
7. 7.In how many years will ₹3500 earn ₹525 simple interest at 3% per year? (a) 4 years (b) 5 years (c) 6 years (d) 10 years
8. 8.In how many years will ₹8000 earn ₹640 simple interest at 4% per year? (a) 1 year (b) 2 years (c) 4 years (d) 3 years
9. 9.₹4500 is invested at 3% per year simple interest. What is the amount after 4 years? (a) ₹5175 (b) ₹5040 (c) ₹540 (d) ₹4635
10. 10.₹7000 is invested at 3% per year simple interest. What is the amount after 5 years? (a) ₹7210 (b) ₹8050 (c) ₹1050 (d) ₹8260
11. 11.₹3000 is invested at 5% per year simple interest. What is the amount after 3 years? (a) ₹3600 (b) ₹3150 (c) ₹3450 (d) ₹450
12. 12.The simple interest on ₹7000 for 2 years is ₹840. What is the rate per year? (a) 12% (b) 7% (c) 5% (d) 6%
13. 13.₹3000 is invested at 5% per year simple interest. What is the amount after 5 years? (a) ₹3150 (b) ₹750 (c) ₹3900 (d) ₹3750
14. 14.The simple interest on ₹3000 for 2 years is ₹720. What is the rate per year? (a) 12% (b) 11% (c) 13% (d) 24%
15. 15.₹3500 is invested at 11% per year simple interest. What is the amount after 3 years? (a) ₹1155 (b) ₹3885 (c) ₹5040 (d) ₹4655
16. 16.What is the simple interest on ₹10000 at 12% per year for 4 years? (a) ₹4800 (b) ₹1200 (c) ₹6000 (d) ₹14800
17. 17.In how many years will ₹4000 earn ₹320 simple interest at 2% per year? (a) 8 years (b) 5 years (c) 3 years (d) 4 years
18. 18.What is the simple interest on ₹8000 at 10% per year for 2 years? (a) ₹800 (b) ₹1600 (c) ₹9600 (d) ₹2400
19. 19.What is the simple interest on ₹5000 at 11% per year for 3 years? (a) ₹550 (b) ₹1650 (c) ₹2200 (d) ₹6650
20. 20.In how many years will ₹4500 earn ₹540 simple interest at 3% per year? (a) 3 years (b) 5 years (c) 4 years (d) 8 years
21. 21.In how many years will ₹8500 earn ₹4250 simple interest at 10% per year? (a) 4 years (b) 6 years (c) 5 years (d) 10 years
22. 22.₹1500 is invested at 12% per year simple interest. What is the amount after 2 years? (a) ₹360 (b) ₹2040 (c) ₹1680 (d) ₹1860
23. 23.What is the simple interest on ₹4000 at 3% per year for 5 years? (a) ₹4600 (b) ₹720 (c) ₹600 (d) ₹120
24. 24.In how many years will ₹8000 earn ₹1600 simple interest at 4% per year? (a) 10 years (b) 6 years (c) 5 years (d) 4 years
25. 25.In how many years will ₹1500 earn ₹450 simple interest at 6% per year? (a) 10 years (b) 4 years (c) 6 years (d) 5 years
26. 26.In how many years will ₹8500 earn ₹3060 simple interest at 12% per year? (a) 4 years (b) 6 years (c) 2 years (d) 3 years
27. 27.The simple interest on ₹8500 for 3 years is ₹1020. What is the rate per year? (a) 5% (b) 3% (c) 4% (d) 12%
28. 28.What is the simple interest on ₹2500 at 10% per year for 2 years? (a) ₹3000 (b) ₹750 (c) ₹500 (d) ₹250
29. 29.What is the simple interest on ₹8000 at 5% per year for 5 years? (a) ₹2400 (b) ₹10000 (c) ₹2000 (d) ₹400
30. 30.The simple interest on ₹4000 for 3 years is ₹1200. What is the rate per year? (a) 30% (b) 11% (c) 10% (d) 9%
31. 31.What is the simple interest on ₹4500 at 11% per year for 3 years? (a) ₹1485 (b) ₹5985 (c) ₹495 (d) ₹1980
32. 32.The simple interest on ₹2500 for 3 years is ₹525. What is the rate per year? (a) 21% (b) 8% (c) 7% (d) 6%
33. 33.₹5500 is invested at 4% per year simple interest. What is the amount after 4 years? (a) ₹6600 (b) ₹6380 (c) ₹5720 (d) ₹880
34. 34.What is the simple interest on ₹5000 at 9% per year for 4 years? (a) ₹6800 (b) ₹450 (c) ₹2250 (d) ₹1800
35. 35.₹7500 is invested at 3% per year simple interest. What is the amount after 5 years? (a) ₹7725 (b) ₹1125 (c) ₹8850 (d) ₹8625
36. 36.What is the simple interest on ₹2500 at 10% per year for 5 years? (a) ₹250 (b) ₹3750 (c) ₹1500 (d) ₹1250
37. 37.In how many years will ₹1000 earn ₹450 simple interest at 9% per year? (a) 10 years (b) 6 years (c) 5 years (d) 4 years
38. 38.What is the simple interest on ₹1500 at 3% per year for 3 years? (a) ₹1635 (b) ₹180 (c) ₹45 (d) ₹135
39. 39.₹7000 is invested at 2% per year simple interest. What is the amount after 5 years? (a) ₹7840 (b) ₹7700 (c) ₹7140 (d) ₹700
40. 40.₹3000 is invested at 12% per year simple interest. What is the amount after 2 years? (a) ₹3360 (b) ₹720 (c) ₹3720 (d) ₹4080

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