Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 328 · 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 ₹9000 earn ₹4320 simple interest at 12% per year? (a) 3 years (b) 8 years (c) 4 years (d) 5 years
2. 2.The simple interest on ₹5000 for 2 years is ₹600. What is the rate per year? (a) 7% (b) 6% (c) 5% (d) 12%
3. 3.₹2500 is invested at 4% per year simple interest. What is the amount after 5 years? (a) ₹3000 (b) ₹2600 (c) ₹3100 (d) ₹500
4. 4.In how many years will ₹7000 earn ₹1680 simple interest at 8% per year? (a) 6 years (b) 3 years (c) 2 years (d) 4 years
5. 5.In how many years will ₹7000 earn ₹2450 simple interest at 7% per year? (a) 6 years (b) 5 years (c) 4 years (d) 10 years
6. 6.₹8500 is invested at 9% per year simple interest. What is the amount after 3 years? (a) ₹11560 (b) ₹2295 (c) ₹10795 (d) ₹9265
7. 7.The simple interest on ₹5500 for 3 years is ₹660. What is the rate per year? (a) 12% (b) 3% (c) 5% (d) 4%
8. 8.In how many years will ₹2500 earn ₹450 simple interest at 6% per year? (a) 4 years (b) 2 years (c) 3 years (d) 6 years
9. 9.What is the simple interest on ₹1000 at 3% per year for 4 years? (a) ₹150 (b) ₹120 (c) ₹30 (d) ₹1120
10. 10.₹6000 is invested at 11% per year simple interest. What is the amount after 2 years? (a) ₹7980 (b) ₹1320 (c) ₹7320 (d) ₹6660
11. 11.In how many years will ₹5000 earn ₹1650 simple interest at 11% per year? (a) 6 years (b) 4 years (c) 3 years (d) 2 years
12. 12.₹7000 is invested at 7% per year simple interest. What is the amount after 2 years? (a) ₹8470 (b) ₹7980 (c) ₹7490 (d) ₹980
13. 13.In how many years will ₹4000 earn ₹400 simple interest at 2% per year? (a) 5 years (b) 10 years (c) 4 years (d) 6 years
14. 14.₹5000 is invested at 5% per year simple interest. What is the amount after 2 years? (a) ₹5250 (b) ₹5750 (c) ₹500 (d) ₹5500
15. 15.What is the simple interest on ₹4000 at 2% per year for 3 years? (a) ₹80 (b) ₹320 (c) ₹4240 (d) ₹240
16. 16.₹3000 is invested at 4% per year simple interest. What is the amount after 5 years? (a) ₹3600 (b) ₹3720 (c) ₹3120 (d) ₹600
17. 17.In how many years will ₹9500 earn ₹760 simple interest at 2% per year? (a) 5 years (b) 3 years (c) 4 years (d) 8 years
18. 18.The simple interest on ₹7000 for 4 years is ₹1960. What is the rate per year? (a) 28% (b) 8% (c) 7% (d) 6%
19. 19.The simple interest on ₹3500 for 2 years is ₹560. What is the rate per year? (a) 16% (b) 7% (c) 8% (d) 9%
20. 20.What is the simple interest on ₹5000 at 2% per year for 3 years? (a) ₹100 (b) ₹5300 (c) ₹400 (d) ₹300
21. 21.What is the simple interest on ₹3500 at 12% per year for 3 years? (a) ₹420 (b) ₹1680 (c) ₹1260 (d) ₹4760
22. 22.The simple interest on ₹7000 for 5 years is ₹1750. What is the rate per year? (a) 4% (b) 5% (c) 6% (d) 25%
23. 23.₹3500 is invested at 9% per year simple interest. What is the amount after 5 years? (a) ₹5390 (b) ₹3815 (c) ₹5075 (d) ₹1575
24. 24.What is the simple interest on ₹4500 at 6% per year for 3 years? (a) ₹810 (b) ₹270 (c) ₹5310 (d) ₹1080
25. 25.₹2000 is invested at 9% per year simple interest. What is the amount after 3 years? (a) ₹2180 (b) ₹2720 (c) ₹2540 (d) ₹540
26. 26.In how many years will ₹3000 earn ₹540 simple interest at 9% per year? (a) 3 years (b) 1 year (c) 2 years (d) 4 years
27. 27.In how many years will ₹3000 earn ₹600 simple interest at 10% per year? (a) 4 years (b) 2 years (c) 1 year (d) 3 years
28. 28.What is the simple interest on ₹7500 at 11% per year for 5 years? (a) ₹11625 (b) ₹4125 (c) ₹825 (d) ₹4950
29. 29.What is the simple interest on ₹7000 at 12% per year for 2 years? (a) ₹2520 (b) ₹1680 (c) ₹8680 (d) ₹840
30. 30.The simple interest on ₹8000 for 5 years is ₹800. What is the rate per year? (a) 10% (b) 3% (c) 2% (d) 1%
31. 31.₹3000 is invested at 9% per year simple interest. What is the amount after 3 years? (a) ₹3270 (b) ₹810 (c) ₹3810 (d) ₹4080
32. 32.What is the simple interest on ₹3500 at 5% per year for 2 years? (a) ₹525 (b) ₹3850 (c) ₹350 (d) ₹175
33. 33.The simple interest on ₹1000 for 3 years is ₹120. What is the rate per year? (a) 3% (b) 5% (c) 12% (d) 4%
34. 34.What is the simple interest on ₹9500 at 7% per year for 2 years? (a) ₹10830 (b) ₹665 (c) ₹1330 (d) ₹1995
35. 35.What is the simple interest on ₹10000 at 7% per year for 4 years? (a) ₹12800 (b) ₹2800 (c) ₹3500 (d) ₹700
36. 36.The simple interest on ₹6000 for 3 years is ₹720. What is the rate per year? (a) 3% (b) 12% (c) 5% (d) 4%
37. 37.In how many years will ₹6000 earn ₹1440 simple interest at 6% per year? (a) 8 years (b) 4 years (c) 5 years (d) 3 years
38. 38.₹9000 is invested at 9% per year simple interest. What is the amount after 5 years? (a) ₹13050 (b) ₹13860 (c) ₹9810 (d) ₹4050
39. 39.₹1500 is invested at 3% per year simple interest. What is the amount after 5 years? (a) ₹1770 (b) ₹225 (c) ₹1725 (d) ₹1545
40. 40.The simple interest on ₹7500 for 4 years is ₹3600. What is the rate per year? (a) 48% (b) 11% (c) 13% (d) 12%

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