Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 86 · 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 ₹6000 earn ₹1440 simple interest at 6% per year? (a) 5 years (b) 4 years (c) 8 years (d) 3 years
2. 2.In how many years will ₹5000 earn ₹3000 simple interest at 12% per year? (a) 4 years (b) 6 years (c) 10 years (d) 5 years
3. 3.In how many years will ₹4000 earn ₹800 simple interest at 4% per year? (a) 5 years (b) 10 years (c) 4 years (d) 6 years
4. 4.₹2500 is invested at 8% per year simple interest. What is the amount after 2 years? (a) ₹2900 (b) ₹2700 (c) ₹400 (d) ₹3100
5. 5.The simple interest on ₹3500 for 2 years is ₹840. What is the rate per year? (a) 12% (b) 24% (c) 13% (d) 11%
6. 6.₹3500 is invested at 7% per year simple interest. What is the amount after 4 years? (a) ₹4480 (b) ₹3745 (c) ₹4725 (d) ₹980
7. 7.In how many years will ₹1000 earn ₹140 simple interest at 7% per year? (a) 1 year (b) 2 years (c) 3 years (d) 4 years
8. 8.The simple interest on ₹6500 for 5 years is ₹650. What is the rate per year? (a) 2% (b) 10% (c) 1% (d) 3%
9. 9.In how many years will ₹1500 earn ₹120 simple interest at 4% per year? (a) 3 years (b) 2 years (c) 4 years (d) 1 year
10. 10.The simple interest on ₹2500 for 2 years is ₹200. What is the rate per year? (a) 4% (b) 8% (c) 5% (d) 3%
11. 11.The simple interest on ₹10000 for 5 years is ₹5500. What is the rate per year? (a) 10% (b) 55% (c) 11% (d) 12%
12. 12.₹7500 is invested at 4% per year simple interest. What is the amount after 4 years? (a) ₹9000 (b) ₹7800 (c) ₹8700 (d) ₹1200
13. 13.In how many years will ₹6500 earn ₹1300 simple interest at 5% per year? (a) 4 years (b) 8 years (c) 5 years (d) 3 years
14. 14.The simple interest on ₹8000 for 2 years is ₹640. What is the rate per year? (a) 5% (b) 3% (c) 4% (d) 8%
15. 15.₹7000 is invested at 2% per year simple interest. What is the amount after 3 years? (a) ₹420 (b) ₹7140 (c) ₹7420 (d) ₹7560
16. 16.₹5000 is invested at 11% per year simple interest. What is the amount after 4 years? (a) ₹5550 (b) ₹7750 (c) ₹2200 (d) ₹7200
17. 17.The simple interest on ₹1500 for 2 years is ₹90. What is the rate per year? (a) 6% (b) 3% (c) 4% (d) 2%
18. 18.What is the simple interest on ₹1500 at 5% per year for 5 years? (a) ₹450 (b) ₹1875 (c) ₹375 (d) ₹75
19. 19.In how many years will ₹9000 earn ₹720 simple interest at 2% per year? (a) 5 years (b) 8 years (c) 3 years (d) 4 years
20. 20.₹5500 is invested at 5% per year simple interest. What is the amount after 3 years? (a) ₹6325 (b) ₹825 (c) ₹6600 (d) ₹5775
21. 21.What is the simple interest on ₹7500 at 5% per year for 3 years? (a) ₹375 (b) ₹1125 (c) ₹1500 (d) ₹8625
22. 22.The simple interest on ₹3500 for 4 years is ₹420. What is the rate per year? (a) 4% (b) 3% (c) 2% (d) 12%
23. 23.₹8000 is invested at 2% per year simple interest. What is the amount after 4 years? (a) ₹8160 (b) ₹640 (c) ₹8640 (d) ₹8800
24. 24.In how many years will ₹4000 earn ₹320 simple interest at 4% per year? (a) 3 years (b) 4 years (c) 2 years (d) 1 year
25. 25.₹7000 is invested at 9% per year simple interest. What is the amount after 4 years? (a) ₹9520 (b) ₹10150 (c) ₹7630 (d) ₹2520
26. 26.The simple interest on ₹9000 for 4 years is ₹3240. What is the rate per year? (a) 9% (b) 36% (c) 10% (d) 8%
27. 27.₹4000 is invested at 5% per year simple interest. What is the amount after 3 years? (a) ₹4800 (b) ₹4200 (c) ₹4600 (d) ₹600
28. 28.₹10000 is invested at 3% per year simple interest. What is the amount after 4 years? (a) ₹10300 (b) ₹1200 (c) ₹11200 (d) ₹11500
29. 29.In how many years will ₹9500 earn ₹570 simple interest at 2% per year? (a) 4 years (b) 3 years (c) 2 years (d) 6 years
30. 30.What is the simple interest on ₹1000 at 6% per year for 3 years? (a) ₹1180 (b) ₹240 (c) ₹60 (d) ₹180
31. 31.What is the simple interest on ₹3000 at 10% per year for 2 years? (a) ₹900 (b) ₹3600 (c) ₹600 (d) ₹300
32. 32.What is the simple interest on ₹7500 at 3% per year for 4 years? (a) ₹900 (b) ₹1125 (c) ₹225 (d) ₹8400
33. 33.The simple interest on ₹1500 for 3 years is ₹405. What is the rate per year? (a) 10% (b) 8% (c) 27% (d) 9%
34. 34.The simple interest on ₹6500 for 3 years is ₹585. What is the rate per year? (a) 2% (b) 4% (c) 3% (d) 9%
35. 35.The simple interest on ₹7500 for 5 years is ₹1125. What is the rate per year? (a) 2% (b) 4% (c) 3% (d) 15%
36. 36.₹4000 is invested at 11% per year simple interest. What is the amount after 4 years? (a) ₹5760 (b) ₹1760 (c) ₹6200 (d) ₹4440
37. 37.₹4500 is invested at 3% per year simple interest. What is the amount after 3 years? (a) ₹4635 (b) ₹405 (c) ₹4905 (d) ₹5040
38. 38.The simple interest on ₹9000 for 5 years is ₹1350. What is the rate per year? (a) 2% (b) 3% (c) 4% (d) 15%
39. 39.What is the simple interest on ₹7500 at 4% per year for 4 years? (a) ₹1500 (b) ₹8700 (c) ₹1200 (d) ₹300
40. 40.The simple interest on ₹2000 for 5 years is ₹1100. What is the rate per year? (a) 55% (b) 12% (c) 11% (d) 10%

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