Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 137 · 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.₹7000 is invested at 7% per year simple interest. What is the amount after 3 years? (a) ₹1470 (b) ₹8470 (c) ₹7490 (d) ₹8960
2. 2.The simple interest on ₹2000 for 3 years is ₹420. What is the rate per year? (a) 6% (b) 21% (c) 7% (d) 8%
3. 3.In how many years will ₹8500 earn ₹3825 simple interest at 9% per year? (a) 4 years (b) 6 years (c) 10 years (d) 5 years
4. 4.The simple interest on ₹8500 for 5 years is ₹3400. What is the rate per year? (a) 7% (b) 40% (c) 9% (d) 8%
5. 5.The simple interest on ₹2500 for 3 years is ₹825. What is the rate per year? (a) 11% (b) 33% (c) 10% (d) 12%
6. 6.₹1500 is invested at 11% per year simple interest. What is the amount after 3 years? (a) ₹495 (b) ₹1995 (c) ₹2160 (d) ₹1665
7. 7.What is the simple interest on ₹1500 at 9% per year for 2 years? (a) ₹1770 (b) ₹270 (c) ₹405 (d) ₹135
8. 8.The simple interest on ₹1500 for 4 years is ₹600. What is the rate per year? (a) 40% (b) 11% (c) 9% (d) 10%
9. 9.What is the simple interest on ₹7500 at 4% per year for 4 years? (a) ₹300 (b) ₹8700 (c) ₹1200 (d) ₹1500
10. 10.What is the simple interest on ₹5500 at 7% per year for 2 years? (a) ₹1155 (b) ₹6270 (c) ₹770 (d) ₹385
11. 11.What is the simple interest on ₹6500 at 5% per year for 5 years? (a) ₹325 (b) ₹8125 (c) ₹1950 (d) ₹1625
12. 12.₹4000 is invested at 5% per year simple interest. What is the amount after 2 years? (a) ₹4200 (b) ₹4600 (c) ₹400 (d) ₹4400
13. 13.₹10000 is invested at 11% per year simple interest. What is the amount after 5 years? (a) ₹11100 (b) ₹16600 (c) ₹5500 (d) ₹15500
14. 14.₹9500 is invested at 7% per year simple interest. What is the amount after 2 years? (a) ₹1330 (b) ₹10165 (c) ₹10830 (d) ₹11495
15. 15.What is the simple interest on ₹4500 at 8% per year for 2 years? (a) ₹1080 (b) ₹5220 (c) ₹360 (d) ₹720
16. 16.In how many years will ₹2500 earn ₹300 simple interest at 4% per year? (a) 2 years (b) 6 years (c) 3 years (d) 4 years
17. 17.What is the simple interest on ₹7500 at 9% per year for 3 years? (a) ₹9525 (b) ₹675 (c) ₹2700 (d) ₹2025
18. 18.₹1500 is invested at 6% per year simple interest. What is the amount after 2 years? (a) ₹1590 (b) ₹180 (c) ₹1770 (d) ₹1680
19. 19.What is the simple interest on ₹5000 at 10% per year for 3 years? (a) ₹6500 (b) ₹500 (c) ₹1500 (d) ₹2000
20. 20.What is the simple interest on ₹7000 at 9% per year for 4 years? (a) ₹2520 (b) ₹3150 (c) ₹9520 (d) ₹630
21. 21.What is the simple interest on ₹4500 at 11% per year for 2 years? (a) ₹5490 (b) ₹990 (c) ₹495 (d) ₹1485
22. 22.In how many years will ₹3500 earn ₹280 simple interest at 4% per year? (a) 4 years (b) 1 year (c) 2 years (d) 3 years
23. 23.The simple interest on ₹9500 for 2 years is ₹760. What is the rate per year? (a) 5% (b) 3% (c) 4% (d) 8%
24. 24.₹5500 is invested at 12% per year simple interest. What is the amount after 2 years? (a) ₹6820 (b) ₹1320 (c) ₹6160 (d) ₹7480
25. 25.The simple interest on ₹7500 for 3 years is ₹675. What is the rate per year? (a) 4% (b) 2% (c) 9% (d) 3%
26. 26.In how many years will ₹6000 earn ₹720 simple interest at 6% per year? (a) 4 years (b) 1 year (c) 2 years (d) 3 years
27. 27.What is the simple interest on ₹9000 at 11% per year for 2 years? (a) ₹10980 (b) ₹1980 (c) ₹990 (d) ₹2970
28. 28.₹5500 is invested at 4% per year simple interest. What is the amount after 2 years? (a) ₹5940 (b) ₹6160 (c) ₹440 (d) ₹5720
29. 29.In how many years will ₹9500 earn ₹1520 simple interest at 4% per year? (a) 5 years (b) 8 years (c) 4 years (d) 3 years
30. 30.What is the simple interest on ₹8000 at 2% per year for 3 years? (a) ₹8480 (b) ₹640 (c) ₹160 (d) ₹480
31. 31.₹4000 is invested at 10% per year simple interest. What is the amount after 2 years? (a) ₹5200 (b) ₹4800 (c) ₹800 (d) ₹4400
32. 32.What is the simple interest on ₹6500 at 9% per year for 4 years? (a) ₹8840 (b) ₹585 (c) ₹2340 (d) ₹2925
33. 33.The simple interest on ₹3000 for 2 years is ₹300. What is the rate per year? (a) 4% (b) 10% (c) 5% (d) 6%
34. 34.What is the simple interest on ₹2000 at 4% per year for 2 years? (a) ₹240 (b) ₹2160 (c) ₹160 (d) ₹80
35. 35.The simple interest on ₹5500 for 3 years is ₹825. What is the rate per year? (a) 6% (b) 15% (c) 4% (d) 5%
36. 36.₹3500 is invested at 7% per year simple interest. What is the amount after 2 years? (a) ₹3745 (b) ₹4235 (c) ₹3990 (d) ₹490
37. 37.In how many years will ₹2000 earn ₹1200 simple interest at 12% per year? (a) 10 years (b) 6 years (c) 5 years (d) 4 years
38. 38.In how many years will ₹3000 earn ₹750 simple interest at 5% per year? (a) 4 years (b) 6 years (c) 5 years (d) 10 years
39. 39.The simple interest on ₹8000 for 5 years is ₹800. What is the rate per year? (a) 3% (b) 10% (c) 2% (d) 1%
40. 40.What is the simple interest on ₹9000 at 7% per year for 3 years? (a) ₹1890 (b) ₹10890 (c) ₹2520 (d) ₹630

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