Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 403 · 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.₹9500 is invested at 11% per year simple interest. What is the amount after 2 years? (a) ₹2090 (b) ₹10545 (c) ₹12635 (d) ₹11590
2. 2.₹8000 is invested at 9% per year simple interest. What is the amount after 4 years? (a) ₹2880 (b) ₹11600 (c) ₹10880 (d) ₹8720
3. 3.In how many years will ₹10000 earn ₹5000 simple interest at 10% per year? (a) 6 years (b) 10 years (c) 5 years (d) 4 years
4. 4.The simple interest on ₹7500 for 2 years is ₹600. What is the rate per year? (a) 5% (b) 3% (c) 8% (d) 4%
5. 5.₹8000 is invested at 3% per year simple interest. What is the amount after 2 years? (a) ₹8720 (b) ₹8480 (c) ₹480 (d) ₹8240
6. 6.What is the simple interest on ₹10000 at 4% per year for 4 years? (a) ₹11600 (b) ₹400 (c) ₹1600 (d) ₹2000
7. 7.In how many years will ₹7000 earn ₹1050 simple interest at 5% per year? (a) 3 years (b) 2 years (c) 4 years (d) 6 years
8. 8.The simple interest on ₹2500 for 4 years is ₹700. What is the rate per year? (a) 7% (b) 6% (c) 8% (d) 28%
9. 9.The simple interest on ₹1500 for 2 years is ₹240. What is the rate per year? (a) 16% (b) 8% (c) 9% (d) 7%
10. 10.In how many years will ₹9000 earn ₹360 simple interest at 2% per year? (a) 4 years (b) 1 year (c) 3 years (d) 2 years
11. 11.The simple interest on ₹10000 for 2 years is ₹2000. What is the rate per year? (a) 9% (b) 10% (c) 11% (d) 20%
12. 12.₹8500 is invested at 9% per year simple interest. What is the amount after 4 years? (a) ₹11560 (b) ₹9265 (c) ₹3060 (d) ₹12325
13. 13.What is the simple interest on ₹2000 at 8% per year for 4 years? (a) ₹2640 (b) ₹800 (c) ₹160 (d) ₹640
14. 14.₹6000 is invested at 2% per year simple interest. What is the amount after 3 years? (a) ₹6120 (b) ₹6480 (c) ₹360 (d) ₹6360
15. 15.The simple interest on ₹2500 for 5 years is ₹1375. What is the rate per year? (a) 55% (b) 11% (c) 12% (d) 10%
16. 16.In how many years will ₹4500 earn ₹1620 simple interest at 9% per year? (a) 3 years (b) 8 years (c) 5 years (d) 4 years
17. 17.What is the simple interest on ₹4000 at 9% per year for 3 years? (a) ₹360 (b) ₹1080 (c) ₹5080 (d) ₹1440
18. 18.The simple interest on ₹6500 for 4 years is ₹1040. What is the rate per year? (a) 3% (b) 5% (c) 4% (d) 16%
19. 19.In how many years will ₹6500 earn ₹390 simple interest at 2% per year? (a) 6 years (b) 3 years (c) 4 years (d) 2 years
20. 20.₹1000 is invested at 5% per year simple interest. What is the amount after 3 years? (a) ₹1200 (b) ₹150 (c) ₹1150 (d) ₹1050
21. 21.What is the simple interest on ₹3000 at 6% per year for 2 years? (a) ₹180 (b) ₹3360 (c) ₹540 (d) ₹360
22. 22.What is the simple interest on ₹1000 at 6% per year for 4 years? (a) ₹60 (b) ₹300 (c) ₹240 (d) ₹1240
23. 23.In how many years will ₹1500 earn ₹180 simple interest at 3% per year? (a) 3 years (b) 8 years (c) 4 years (d) 5 years
24. 24.The simple interest on ₹2500 for 2 years is ₹200. What is the rate per year? (a) 3% (b) 8% (c) 5% (d) 4%
25. 25.What is the simple interest on ₹6500 at 2% per year for 2 years? (a) ₹260 (b) ₹6760 (c) ₹130 (d) ₹390
26. 26.What is the simple interest on ₹7500 at 3% per year for 5 years? (a) ₹225 (b) ₹1350 (c) ₹8625 (d) ₹1125
27. 27.The simple interest on ₹8000 for 4 years is ₹1600. What is the rate per year? (a) 20% (b) 4% (c) 5% (d) 6%
28. 28.What is the simple interest on ₹7000 at 12% per year for 2 years? (a) ₹840 (b) ₹1680 (c) ₹2520 (d) ₹8680
29. 29.The simple interest on ₹2500 for 4 years is ₹300. What is the rate per year? (a) 3% (b) 2% (c) 4% (d) 12%
30. 30.₹8000 is invested at 7% per year simple interest. What is the amount after 3 years? (a) ₹1680 (b) ₹8560 (c) ₹10240 (d) ₹9680
31. 31.The simple interest on ₹10000 for 2 years is ₹1800. What is the rate per year? (a) 8% (b) 18% (c) 10% (d) 9%
32. 32.In how many years will ₹2500 earn ₹450 simple interest at 9% per year? (a) 2 years (b) 3 years (c) 4 years (d) 1 year
33. 33.The simple interest on ₹1000 for 4 years is ₹200. What is the rate per year? (a) 4% (b) 5% (c) 20% (d) 6%
34. 34.The simple interest on ₹5500 for 3 years is ₹825. What is the rate per year? (a) 4% (b) 5% (c) 6% (d) 15%
35. 35.In how many years will ₹9000 earn ₹1080 simple interest at 6% per year? (a) 4 years (b) 1 year (c) 3 years (d) 2 years
36. 36.What is the simple interest on ₹5000 at 9% per year for 2 years? (a) ₹5900 (b) ₹1350 (c) ₹450 (d) ₹900
37. 37.The simple interest on ₹2000 for 4 years is ₹560. What is the rate per year? (a) 28% (b) 6% (c) 8% (d) 7%
38. 38.The simple interest on ₹9500 for 5 years is ₹5700. What is the rate per year? (a) 60% (b) 12% (c) 11% (d) 13%
39. 39.The simple interest on ₹1500 for 2 years is ₹180. What is the rate per year? (a) 5% (b) 6% (c) 12% (d) 7%
40. 40.The simple interest on ₹1500 for 5 years is ₹225. What is the rate per year? (a) 2% (b) 3% (c) 4% (d) 15%

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