Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 826 · 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 ₹9000 at 7% per year for 3 years? (a) ₹630 (b) ₹2520 (c) ₹10890 (d) ₹1890
2. 2.The simple interest on ₹5000 for 3 years is ₹300. What is the rate per year? (a) 3% (b) 2% (c) 6% (d) 1%
3. 3.In how many years will ₹8000 earn ₹3600 simple interest at 9% per year? (a) 10 years (b) 4 years (c) 5 years (d) 6 years
4. 4.In how many years will ₹4000 earn ₹960 simple interest at 6% per year? (a) 4 years (b) 3 years (c) 5 years (d) 8 years
5. 5.₹6000 is invested at 2% per year simple interest. What is the amount after 2 years? (a) ₹6360 (b) ₹6240 (c) ₹6120 (d) ₹240
6. 6.What is the simple interest on ₹9000 at 5% per year for 3 years? (a) ₹1800 (b) ₹450 (c) ₹10350 (d) ₹1350
7. 7.The simple interest on ₹1000 for 5 years is ₹200. What is the rate per year? (a) 4% (b) 20% (c) 5% (d) 3%
8. 8.₹3000 is invested at 2% per year simple interest. What is the amount after 5 years? (a) ₹300 (b) ₹3360 (c) ₹3300 (d) ₹3060
9. 9.What is the simple interest on ₹4000 at 7% per year for 5 years? (a) ₹1400 (b) ₹5400 (c) ₹1680 (d) ₹280
10. 10.What is the simple interest on ₹5000 at 11% per year for 2 years? (a) ₹6100 (b) ₹1100 (c) ₹1650 (d) ₹550
11. 11.The simple interest on ₹2500 for 5 years is ₹1500. What is the rate per year? (a) 12% (b) 13% (c) 11% (d) 60%
12. 12.₹4500 is invested at 9% per year simple interest. What is the amount after 2 years? (a) ₹810 (b) ₹5310 (c) ₹5715 (d) ₹4905
13. 13.In how many years will ₹8500 earn ₹340 simple interest at 2% per year? (a) 2 years (b) 4 years (c) 1 year (d) 3 years
14. 14.In how many years will ₹1500 earn ₹675 simple interest at 9% per year? (a) 10 years (b) 6 years (c) 4 years (d) 5 years
15. 15.The simple interest on ₹3000 for 4 years is ₹600. What is the rate per year? (a) 5% (b) 4% (c) 6% (d) 20%
16. 16.In how many years will ₹1000 earn ₹100 simple interest at 5% per year? (a) 3 years (b) 4 years (c) 1 year (d) 2 years
17. 17.What is the simple interest on ₹10000 at 5% per year for 2 years? (a) ₹11000 (b) ₹1000 (c) ₹500 (d) ₹1500
18. 18.The simple interest on ₹8000 for 3 years is ₹1920. What is the rate per year? (a) 24% (b) 9% (c) 7% (d) 8%
19. 19.In how many years will ₹3500 earn ₹525 simple interest at 3% per year? (a) 6 years (b) 5 years (c) 10 years (d) 4 years
20. 20.What is the simple interest on ₹4000 at 10% per year for 4 years? (a) ₹5600 (b) ₹1600 (c) ₹2000 (d) ₹400
21. 21.₹7500 is invested at 8% per year simple interest. What is the amount after 4 years? (a) ₹2400 (b) ₹8100 (c) ₹9900 (d) ₹10500
22. 22.What is the simple interest on ₹7500 at 9% per year for 3 years? (a) ₹2700 (b) ₹9525 (c) ₹675 (d) ₹2025
23. 23.What is the simple interest on ₹1000 at 8% per year for 4 years? (a) ₹1320 (b) ₹80 (c) ₹400 (d) ₹320
24. 24.What is the simple interest on ₹7000 at 11% per year for 5 years? (a) ₹3850 (b) ₹770 (c) ₹4620 (d) ₹10850
25. 25.The simple interest on ₹8500 for 2 years is ₹850. What is the rate per year? (a) 4% (b) 5% (c) 6% (d) 10%
26. 26.What is the simple interest on ₹6500 at 7% per year for 4 years? (a) ₹1820 (b) ₹455 (c) ₹8320 (d) ₹2275
27. 27.₹1000 is invested at 6% per year simple interest. What is the amount after 4 years? (a) ₹240 (b) ₹1060 (c) ₹1300 (d) ₹1240
28. 28.The simple interest on ₹9000 for 5 years is ₹900. What is the rate per year? (a) 3% (b) 2% (c) 10% (d) 1%
29. 29.In how many years will ₹7500 earn ₹675 simple interest at 3% per year? (a) 6 years (b) 3 years (c) 2 years (d) 4 years
30. 30.What is the simple interest on ₹10000 at 8% per year for 3 years? (a) ₹12400 (b) ₹2400 (c) ₹3200 (d) ₹800
31. 31.₹4000 is invested at 7% per year simple interest. What is the amount after 3 years? (a) ₹5120 (b) ₹4840 (c) ₹840 (d) ₹4280
32. 32.₹6000 is invested at 2% per year simple interest. What is the amount after 4 years? (a) ₹6600 (b) ₹480 (c) ₹6480 (d) ₹6120
33. 33.What is the simple interest on ₹6000 at 4% per year for 4 years? (a) ₹960 (b) ₹240 (c) ₹1200 (d) ₹6960
34. 34.₹9000 is invested at 11% per year simple interest. What is the amount after 3 years? (a) ₹11970 (b) ₹12960 (c) ₹2970 (d) ₹9990
35. 35.The simple interest on ₹3500 for 2 years is ₹560. What is the rate per year? (a) 8% (b) 16% (c) 9% (d) 7%
36. 36.₹3000 is invested at 9% per year simple interest. What is the amount after 4 years? (a) ₹1080 (b) ₹3270 (c) ₹4350 (d) ₹4080
37. 37.₹6000 is invested at 5% per year simple interest. What is the amount after 4 years? (a) ₹6300 (b) ₹1200 (c) ₹7200 (d) ₹7500
38. 38.In how many years will ₹4500 earn ₹990 simple interest at 11% per year? (a) 1 year (b) 2 years (c) 3 years (d) 4 years
39. 39.₹4500 is invested at 3% per year simple interest. What is the amount after 3 years? (a) ₹405 (b) ₹4905 (c) ₹4635 (d) ₹5040
40. 40.In how many years will ₹8000 earn ₹2160 simple interest at 9% per year? (a) 6 years (b) 2 years (c) 3 years (d) 4 years

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