Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 79 · 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 ₹10000 earn ₹1500 simple interest at 5% per year? (a) 4 years (b) 3 years (c) 2 years (d) 6 years
2. 2.In how many years will ₹2000 earn ₹200 simple interest at 2% per year? (a) 6 years (b) 5 years (c) 4 years (d) 10 years
3. 3.In how many years will ₹6500 earn ₹1300 simple interest at 10% per year? (a) 2 years (b) 4 years (c) 1 year (d) 3 years
4. 4.The simple interest on ₹6500 for 2 years is ₹780. What is the rate per year? (a) 6% (b) 12% (c) 5% (d) 7%
5. 5.₹1000 is invested at 8% per year simple interest. What is the amount after 3 years? (a) ₹1320 (b) ₹1240 (c) ₹240 (d) ₹1080
6. 6.The simple interest on ₹9500 for 2 years is ₹1900. What is the rate per year? (a) 20% (b) 10% (c) 9% (d) 11%
7. 7.What is the simple interest on ₹5000 at 10% per year for 4 years? (a) ₹500 (b) ₹7000 (c) ₹2500 (d) ₹2000
8. 8.What is the simple interest on ₹3000 at 6% per year for 5 years? (a) ₹900 (b) ₹1080 (c) ₹180 (d) ₹3900
9. 9.What is the simple interest on ₹2000 at 11% per year for 3 years? (a) ₹2660 (b) ₹220 (c) ₹660 (d) ₹880
10. 10.What is the simple interest on ₹5000 at 2% per year for 4 years? (a) ₹500 (b) ₹5400 (c) ₹400 (d) ₹100
11. 11.In how many years will ₹1000 earn ₹360 simple interest at 12% per year? (a) 4 years (b) 6 years (c) 3 years (d) 2 years
12. 12.₹5000 is invested at 7% per year simple interest. What is the amount after 4 years? (a) ₹6400 (b) ₹1400 (c) ₹6750 (d) ₹5350
13. 13.₹1000 is invested at 12% per year simple interest. What is the amount after 5 years? (a) ₹1120 (b) ₹1720 (c) ₹1600 (d) ₹600
14. 14.What is the simple interest on ₹9000 at 5% per year for 5 years? (a) ₹2700 (b) ₹450 (c) ₹2250 (d) ₹11250
15. 15.In how many years will ₹8000 earn ₹960 simple interest at 3% per year? (a) 4 years (b) 8 years (c) 5 years (d) 3 years
16. 16.In how many years will ₹1000 earn ₹80 simple interest at 2% per year? (a) 5 years (b) 8 years (c) 3 years (d) 4 years
17. 17.The simple interest on ₹10000 for 3 years is ₹600. What is the rate per year? (a) 1% (b) 2% (c) 3% (d) 6%
18. 18.₹2000 is invested at 5% per year simple interest. What is the amount after 2 years? (a) ₹200 (b) ₹2100 (c) ₹2200 (d) ₹2300
19. 19.In how many years will ₹2500 earn ₹1375 simple interest at 11% per year? (a) 5 years (b) 10 years (c) 4 years (d) 6 years
20. 20.What is the simple interest on ₹7500 at 2% per year for 5 years? (a) ₹750 (b) ₹150 (c) ₹900 (d) ₹8250
21. 21.What is the simple interest on ₹6000 at 12% per year for 4 years? (a) ₹720 (b) ₹2880 (c) ₹3600 (d) ₹8880
22. 22.The simple interest on ₹1000 for 2 years is ₹60. What is the rate per year? (a) 4% (b) 6% (c) 2% (d) 3%
23. 23.In how many years will ₹1000 earn ₹100 simple interest at 5% per year? (a) 4 years (b) 3 years (c) 1 year (d) 2 years
24. 24.What is the simple interest on ₹2000 at 3% per year for 2 years? (a) ₹180 (b) ₹60 (c) ₹2120 (d) ₹120
25. 25.In how many years will ₹6500 earn ₹1300 simple interest at 4% per year? (a) 4 years (b) 6 years (c) 10 years (d) 5 years
26. 26.What is the simple interest on ₹10000 at 9% per year for 3 years? (a) ₹3600 (b) ₹12700 (c) ₹900 (d) ₹2700
27. 27.What is the simple interest on ₹6000 at 4% per year for 2 years? (a) ₹720 (b) ₹480 (c) ₹240 (d) ₹6480
28. 28.In how many years will ₹3500 earn ₹1260 simple interest at 9% per year? (a) 4 years (b) 3 years (c) 5 years (d) 8 years
29. 29.What is the simple interest on ₹9000 at 9% per year for 4 years? (a) ₹4050 (b) ₹3240 (c) ₹12240 (d) ₹810
30. 30.The simple interest on ₹9000 for 3 years is ₹810. What is the rate per year? (a) 4% (b) 2% (c) 9% (d) 3%
31. 31.What is the simple interest on ₹3500 at 4% per year for 4 years? (a) ₹4060 (b) ₹700 (c) ₹140 (d) ₹560
32. 32.What is the simple interest on ₹9500 at 3% per year for 4 years? (a) ₹285 (b) ₹1425 (c) ₹10640 (d) ₹1140
33. 33.In how many years will ₹8000 earn ₹1600 simple interest at 4% per year? (a) 10 years (b) 5 years (c) 4 years (d) 6 years
34. 34.What is the simple interest on ₹10000 at 7% per year for 5 years? (a) ₹4200 (b) ₹13500 (c) ₹3500 (d) ₹700
35. 35.The simple interest on ₹8500 for 2 years is ₹680. What is the rate per year? (a) 8% (b) 4% (c) 5% (d) 3%
36. 36.What is the simple interest on ₹5500 at 8% per year for 3 years? (a) ₹1320 (b) ₹6820 (c) ₹440 (d) ₹1760
37. 37.In how many years will ₹7000 earn ₹3850 simple interest at 11% per year? (a) 6 years (b) 10 years (c) 5 years (d) 4 years
38. 38.₹4500 is invested at 3% per year simple interest. What is the amount after 2 years? (a) ₹4770 (b) ₹4635 (c) ₹4905 (d) ₹270
39. 39.The simple interest on ₹2000 for 4 years is ₹160. What is the rate per year? (a) 3% (b) 2% (c) 8% (d) 1%
40. 40.In how many years will ₹7500 earn ₹2400 simple interest at 8% per year? (a) 5 years (b) 8 years (c) 4 years (d) 3 years

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