Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 382 · 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 ₹1500 earn ₹375 simple interest at 5% per year? (a) 4 years (b) 10 years (c) 6 years (d) 5 years
2. 2.The simple interest on ₹2500 for 2 years is ₹300. What is the rate per year? (a) 5% (b) 6% (c) 7% (d) 12%
3. 3.₹8000 is invested at 12% per year simple interest. What is the amount after 3 years? (a) ₹10880 (b) ₹11840 (c) ₹8960 (d) ₹2880
4. 4.The simple interest on ₹3000 for 5 years is ₹1350. What is the rate per year? (a) 10% (b) 45% (c) 9% (d) 8%
5. 5.What is the simple interest on ₹7000 at 7% per year for 5 years? (a) ₹2940 (b) ₹2450 (c) ₹9450 (d) ₹490
6. 6.The simple interest on ₹7500 for 4 years is ₹1500. What is the rate per year? (a) 4% (b) 20% (c) 6% (d) 5%
7. 7.In how many years will ₹8000 earn ₹4000 simple interest at 10% per year? (a) 5 years (b) 10 years (c) 4 years (d) 6 years
8. 8.₹1500 is invested at 4% per year simple interest. What is the amount after 4 years? (a) ₹1800 (b) ₹1560 (c) ₹1740 (d) ₹240
9. 9.In how many years will ₹10000 earn ₹600 simple interest at 3% per year? (a) 4 years (b) 3 years (c) 1 year (d) 2 years
10. 10.₹4500 is invested at 5% per year simple interest. What is the amount after 4 years? (a) ₹5400 (b) ₹900 (c) ₹5625 (d) ₹4725
11. 11.In how many years will ₹6000 earn ₹480 simple interest at 2% per year? (a) 5 years (b) 3 years (c) 8 years (d) 4 years
12. 12.What is the simple interest on ₹1000 at 11% per year for 2 years? (a) ₹220 (b) ₹1220 (c) ₹110 (d) ₹330
13. 13.In how many years will ₹8500 earn ₹2040 simple interest at 12% per year? (a) 3 years (b) 2 years (c) 1 year (d) 4 years
14. 14.The simple interest on ₹5500 for 5 years is ₹3025. What is the rate per year? (a) 11% (b) 12% (c) 55% (d) 10%
15. 15.What is the simple interest on ₹4000 at 2% per year for 4 years? (a) ₹4320 (b) ₹400 (c) ₹320 (d) ₹80
16. 16.In how many years will ₹7500 earn ₹2625 simple interest at 7% per year? (a) 5 years (b) 6 years (c) 10 years (d) 4 years
17. 17.In how many years will ₹8000 earn ₹800 simple interest at 2% per year? (a) 4 years (b) 6 years (c) 5 years (d) 10 years
18. 18.The simple interest on ₹4500 for 3 years is ₹675. What is the rate per year? (a) 6% (b) 4% (c) 5% (d) 15%
19. 19.₹7000 is invested at 3% per year simple interest. What is the amount after 4 years? (a) ₹7210 (b) ₹8050 (c) ₹840 (d) ₹7840
20. 20.₹3500 is invested at 3% per year simple interest. What is the amount after 5 years? (a) ₹4130 (b) ₹3605 (c) ₹525 (d) ₹4025
21. 21.In how many years will ₹8000 earn ₹3840 simple interest at 12% per year? (a) 4 years (b) 3 years (c) 8 years (d) 5 years
22. 22.What is the simple interest on ₹7000 at 7% per year for 4 years? (a) ₹490 (b) ₹2450 (c) ₹1960 (d) ₹8960
23. 23.₹4500 is invested at 12% per year simple interest. What is the amount after 5 years? (a) ₹2700 (b) ₹7200 (c) ₹5040 (d) ₹7740
24. 24.In how many years will ₹3000 earn ₹600 simple interest at 5% per year? (a) 8 years (b) 5 years (c) 3 years (d) 4 years
25. 25.In how many years will ₹7000 earn ₹1680 simple interest at 8% per year? (a) 6 years (b) 2 years (c) 4 years (d) 3 years
26. 26.What is the simple interest on ₹4000 at 12% per year for 4 years? (a) ₹1920 (b) ₹5920 (c) ₹480 (d) ₹2400
27. 27.The simple interest on ₹9000 for 3 years is ₹2160. What is the rate per year? (a) 9% (b) 7% (c) 8% (d) 24%
28. 28.What is the simple interest on ₹10000 at 10% per year for 4 years? (a) ₹4000 (b) ₹1000 (c) ₹14000 (d) ₹5000
29. 29.₹4000 is invested at 2% per year simple interest. What is the amount after 3 years? (a) ₹240 (b) ₹4320 (c) ₹4080 (d) ₹4240
30. 30.₹9500 is invested at 8% per year simple interest. What is the amount after 4 years? (a) ₹13300 (b) ₹12540 (c) ₹3040 (d) ₹10260
31. 31.₹8000 is invested at 8% per year simple interest. What is the amount after 3 years? (a) ₹8640 (b) ₹9920 (c) ₹1920 (d) ₹10560
32. 32.What is the simple interest on ₹8500 at 7% per year for 2 years? (a) ₹9690 (b) ₹1785 (c) ₹1190 (d) ₹595
33. 33.In how many years will ₹5000 earn ₹2200 simple interest at 11% per year? (a) 5 years (b) 8 years (c) 4 years (d) 3 years
34. 34.In how many years will ₹5500 earn ₹660 simple interest at 4% per year? (a) 2 years (b) 6 years (c) 4 years (d) 3 years
35. 35.₹1000 is invested at 9% per year simple interest. What is the amount after 4 years? (a) ₹1090 (b) ₹1360 (c) ₹1450 (d) ₹360
36. 36.The simple interest on ₹3500 for 3 years is ₹315. What is the rate per year? (a) 3% (b) 2% (c) 9% (d) 4%
37. 37.In how many years will ₹7500 earn ₹3300 simple interest at 11% per year? (a) 8 years (b) 4 years (c) 5 years (d) 3 years
38. 38.In how many years will ₹5000 earn ₹450 simple interest at 3% per year? (a) 2 years (b) 4 years (c) 6 years (d) 3 years
39. 39.₹8000 is invested at 2% per year simple interest. What is the amount after 5 years? (a) ₹8800 (b) ₹800 (c) ₹8960 (d) ₹8160
40. 40.The simple interest on ₹4500 for 2 years is ₹630. What is the rate per year? (a) 8% (b) 7% (c) 6% (d) 14%

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