Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 333 · 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.₹1500 is invested at 9% per year simple interest. What is the amount after 2 years? (a) ₹1905 (b) ₹1635 (c) ₹1770 (d) ₹270
2. 2.In how many years will ₹2000 earn ₹240 simple interest at 6% per year? (a) 2 years (b) 3 years (c) 1 year (d) 4 years
3. 3.₹7000 is invested at 3% per year simple interest. What is the amount after 2 years? (a) ₹7630 (b) ₹7210 (c) ₹7420 (d) ₹420
4. 4.What is the simple interest on ₹6500 at 5% per year for 4 years? (a) ₹1300 (b) ₹1625 (c) ₹325 (d) ₹7800
5. 5.₹7000 is invested at 3% per year simple interest. What is the amount after 4 years? (a) ₹7210 (b) ₹8050 (c) ₹840 (d) ₹7840
6. 6.The simple interest on ₹7000 for 3 years is ₹1680. What is the rate per year? (a) 24% (b) 9% (c) 7% (d) 8%
7. 7.What is the simple interest on ₹6000 at 9% per year for 4 years? (a) ₹2700 (b) ₹540 (c) ₹2160 (d) ₹8160
8. 8.What is the simple interest on ₹2500 at 5% per year for 2 years? (a) ₹250 (b) ₹125 (c) ₹375 (d) ₹2750
9. 9.What is the simple interest on ₹8000 at 5% per year for 2 years? (a) ₹400 (b) ₹8800 (c) ₹1200 (d) ₹800
10. 10.What is the simple interest on ₹10000 at 10% per year for 3 years? (a) ₹4000 (b) ₹3000 (c) ₹1000 (d) ₹13000
11. 11.What is the simple interest on ₹4500 at 3% per year for 3 years? (a) ₹135 (b) ₹540 (c) ₹4905 (d) ₹405
12. 12.₹6500 is invested at 8% per year simple interest. What is the amount after 4 years? (a) ₹7020 (b) ₹2080 (c) ₹8580 (d) ₹9100
13. 13.What is the simple interest on ₹7500 at 12% per year for 2 years? (a) ₹1800 (b) ₹9300 (c) ₹2700 (d) ₹900
14. 14.What is the simple interest on ₹2500 at 9% per year for 2 years? (a) ₹675 (b) ₹2950 (c) ₹450 (d) ₹225
15. 15.The simple interest on ₹5000 for 3 years is ₹750. What is the rate per year? (a) 4% (b) 15% (c) 5% (d) 6%
16. 16.₹7000 is invested at 4% per year simple interest. What is the amount after 5 years? (a) ₹8680 (b) ₹8400 (c) ₹7280 (d) ₹1400
17. 17.₹9000 is invested at 12% per year simple interest. What is the amount after 3 years? (a) ₹13320 (b) ₹12240 (c) ₹3240 (d) ₹10080
18. 18.The simple interest on ₹9000 for 2 years is ₹720. What is the rate per year? (a) 5% (b) 3% (c) 8% (d) 4%
19. 19.What is the simple interest on ₹4000 at 3% per year for 5 years? (a) ₹720 (b) ₹4600 (c) ₹600 (d) ₹120
20. 20.What is the simple interest on ₹5000 at 9% per year for 2 years? (a) ₹5900 (b) ₹1350 (c) ₹450 (d) ₹900
21. 21.What is the simple interest on ₹2000 at 10% per year for 4 years? (a) ₹2800 (b) ₹200 (c) ₹800 (d) ₹1000
22. 22.What is the simple interest on ₹4000 at 2% per year for 5 years? (a) ₹480 (b) ₹400 (c) ₹4400 (d) ₹80
23. 23.What is the simple interest on ₹9000 at 4% per year for 4 years? (a) ₹10440 (b) ₹1800 (c) ₹1440 (d) ₹360
24. 24.The simple interest on ₹2500 for 3 years is ₹525. What is the rate per year? (a) 6% (b) 21% (c) 8% (d) 7%
25. 25.The simple interest on ₹1000 for 2 years is ₹200. What is the rate per year? (a) 9% (b) 11% (c) 10% (d) 20%
26. 26.In how many years will ₹7000 earn ₹1540 simple interest at 11% per year? (a) 4 years (b) 3 years (c) 1 year (d) 2 years
27. 27.What is the simple interest on ₹3500 at 12% per year for 3 years? (a) ₹4760 (b) ₹1260 (c) ₹1680 (d) ₹420
28. 28.In how many years will ₹8000 earn ₹1920 simple interest at 8% per year? (a) 6 years (b) 4 years (c) 3 years (d) 2 years
29. 29.The simple interest on ₹1000 for 3 years is ₹60. What is the rate per year? (a) 2% (b) 6% (c) 1% (d) 3%
30. 30.In how many years will ₹9500 earn ₹1520 simple interest at 4% per year? (a) 3 years (b) 4 years (c) 5 years (d) 8 years
31. 31.The simple interest on ₹6000 for 4 years is ₹2640. What is the rate per year? (a) 12% (b) 10% (c) 11% (d) 44%
32. 32.The simple interest on ₹8000 for 2 years is ₹1760. What is the rate per year? (a) 10% (b) 12% (c) 11% (d) 22%
33. 33.What is the simple interest on ₹9000 at 7% per year for 2 years? (a) ₹10260 (b) ₹1890 (c) ₹1260 (d) ₹630
34. 34.₹3000 is invested at 8% per year simple interest. What is the amount after 2 years? (a) ₹3480 (b) ₹3240 (c) ₹480 (d) ₹3720
35. 35.In how many years will ₹8500 earn ₹4080 simple interest at 12% per year? (a) 8 years (b) 3 years (c) 5 years (d) 4 years
36. 36.In how many years will ₹1000 earn ₹440 simple interest at 11% per year? (a) 5 years (b) 8 years (c) 4 years (d) 3 years
37. 37.₹10000 is invested at 12% per year simple interest. What is the amount after 2 years? (a) ₹2400 (b) ₹11200 (c) ₹13600 (d) ₹12400
38. 38.₹4500 is invested at 11% per year simple interest. What is the amount after 4 years? (a) ₹1980 (b) ₹4995 (c) ₹6975 (d) ₹6480
39. 39.₹7500 is invested at 9% per year simple interest. What is the amount after 3 years? (a) ₹9525 (b) ₹8175 (c) ₹2025 (d) ₹10200
40. 40.The simple interest on ₹1000 for 2 years is ₹100. What is the rate per year? (a) 4% (b) 10% (c) 5% (d) 6%

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