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Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 862 · 40 questions
TalentJR

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).

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  1. 1.What is the simple interest on ₹1000 at 4% per year for 3 years? (a) ₹40 (b) ₹160 (c) ₹1120 (d) ₹120
  2. 2.In how many years will ₹3000 earn ₹450 simple interest at 5% per year? (a) 3 years (b) 6 years (c) 4 years (d) 2 years
  3. 3.The simple interest on ₹6000 for 2 years is ₹1080. What is the rate per year? (a) 8% (b) 10% (c) 18% (d) 9%
  4. 4.In how many years will ₹7500 earn ₹1800 simple interest at 8% per year? (a) 4 years (b) 3 years (c) 2 years (d) 6 years
  5. 5.What is the simple interest on ₹1500 at 2% per year for 4 years? (a) ₹1620 (b) ₹150 (c) ₹120 (d) ₹30
  6. 6.The simple interest on ₹3000 for 3 years is ₹270. What is the rate per year? (a) 4% (b) 9% (c) 3% (d) 2%
  7. 7.What is the simple interest on ₹2000 at 6% per year for 5 years? (a) ₹720 (b) ₹600 (c) ₹120 (d) ₹2600
  8. 8.The simple interest on ₹2500 for 2 years is ₹150. What is the rate per year? (a) 2% (b) 4% (c) 3% (d) 6%
  9. 9.The simple interest on ₹10000 for 3 years is ₹1500. What is the rate per year? (a) 15% (b) 4% (c) 6% (d) 5%
  10. 10.What is the simple interest on ₹4500 at 11% per year for 5 years? (a) ₹2475 (b) ₹2970 (c) ₹6975 (d) ₹495
  11. 11.In how many years will ₹7500 earn ₹4125 simple interest at 11% per year? (a) 5 years (b) 6 years (c) 4 years (d) 10 years
  12. 12.In how many years will ₹3500 earn ₹350 simple interest at 5% per year? (a) 1 year (b) 3 years (c) 2 years (d) 4 years
  13. 13.The simple interest on ₹5000 for 5 years is ₹2500. What is the rate per year? (a) 10% (b) 50% (c) 11% (d) 9%
  14. 14.What is the simple interest on ₹5000 at 10% per year for 4 years? (a) ₹7000 (b) ₹2500 (c) ₹2000 (d) ₹500
  15. 15.What is the simple interest on ₹10000 at 10% per year for 5 years? (a) ₹5000 (b) ₹15000 (c) ₹6000 (d) ₹1000
  16. 16.What is the simple interest on ₹8500 at 10% per year for 5 years? (a) ₹4250 (b) ₹5100 (c) ₹12750 (d) ₹850
  17. 17.The simple interest on ₹3000 for 2 years is ₹300. What is the rate per year? (a) 10% (b) 5% (c) 4% (d) 6%
  18. 18.The simple interest on ₹5500 for 4 years is ₹1540. What is the rate per year? (a) 7% (b) 28% (c) 6% (d) 8%
  19. 19.The simple interest on ₹9500 for 4 years is ₹1140. What is the rate per year? (a) 12% (b) 3% (c) 2% (d) 4%
  20. 20.What is the simple interest on ₹6500 at 10% per year for 5 years? (a) ₹3900 (b) ₹9750 (c) ₹3250 (d) ₹650
  21. 21.₹10000 is invested at 12% per year simple interest. What is the amount after 2 years? (a) ₹13600 (b) ₹2400 (c) ₹11200 (d) ₹12400
  22. 22.What is the simple interest on ₹2500 at 2% per year for 5 years? (a) ₹250 (b) ₹2750 (c) ₹300 (d) ₹50
  23. 23.What is the simple interest on ₹7000 at 6% per year for 4 years? (a) ₹8680 (b) ₹1680 (c) ₹2100 (d) ₹420
  24. 24.In how many years will ₹2000 earn ₹300 simple interest at 3% per year? (a) 6 years (b) 4 years (c) 10 years (d) 5 years
  25. 25.The simple interest on ₹1000 for 2 years is ₹80. What is the rate per year? (a) 4% (b) 3% (c) 8% (d) 5%
  26. 26.What is the simple interest on ₹3500 at 7% per year for 3 years? (a) ₹735 (b) ₹4235 (c) ₹980 (d) ₹245
  27. 27.The simple interest on ₹6000 for 2 years is ₹360. What is the rate per year? (a) 3% (b) 6% (c) 2% (d) 4%
  28. 28.In how many years will ₹2000 earn ₹320 simple interest at 4% per year? (a) 4 years (b) 5 years (c) 3 years (d) 8 years
  29. 29.The simple interest on ₹3000 for 5 years is ₹450. What is the rate per year? (a) 2% (b) 15% (c) 3% (d) 4%
  30. 30.₹8000 is invested at 7% per year simple interest. What is the amount after 2 years? (a) ₹8560 (b) ₹9680 (c) ₹9120 (d) ₹1120
  31. 31.What is the simple interest on ₹3000 at 5% per year for 5 years? (a) ₹750 (b) ₹900 (c) ₹3750 (d) ₹150
  32. 32.In how many years will ₹9000 earn ₹540 simple interest at 3% per year? (a) 3 years (b) 4 years (c) 1 year (d) 2 years
  33. 33.₹6500 is invested at 5% per year simple interest. What is the amount after 5 years? (a) ₹6825 (b) ₹8125 (c) ₹1625 (d) ₹8450
  34. 34.In how many years will ₹6000 earn ₹3000 simple interest at 10% per year? (a) 6 years (b) 10 years (c) 5 years (d) 4 years
  35. 35.The simple interest on ₹8500 for 3 years is ₹765. What is the rate per year? (a) 9% (b) 4% (c) 3% (d) 2%
  36. 36.The simple interest on ₹4500 for 5 years is ₹675. What is the rate per year? (a) 2% (b) 15% (c) 3% (d) 4%
  37. 37.What is the simple interest on ₹2500 at 8% per year for 2 years? (a) ₹200 (b) ₹2900 (c) ₹600 (d) ₹400
  38. 38.₹8500 is invested at 8% per year simple interest. What is the amount after 2 years? (a) ₹9180 (b) ₹1360 (c) ₹10540 (d) ₹9860
  39. 39.In how many years will ₹2500 earn ₹1375 simple interest at 11% per year? (a) 10 years (b) 5 years (c) 4 years (d) 6 years
  40. 40.₹5500 is invested at 3% per year simple interest. What is the amount after 4 years? (a) ₹6160 (b) ₹660 (c) ₹6325 (d) ₹5665

Answer key

  1. ₹120
  2. 3 years
  3. 9%
  4. 3 years
  5. ₹120
  6. 3%
  7. ₹600
  8. 3%
  9. 5%
  10. ₹2475
  11. 5 years
  12. 2 years
  13. 10%
  14. ₹2000
  15. ₹5000
  16. ₹4250
  17. 5%
  18. 7%
  19. 3%
  20. ₹3250
  21. ₹12400
  22. ₹250
  23. ₹1680
  24. 5 years
  25. 4%
  26. ₹735
  27. 3%
  28. 4 years
  29. 3%
  30. ₹9120
  31. ₹750
  32. 2 years
  33. ₹8125
  34. 5 years
  35. 3%
  36. 3%
  37. ₹400
  38. ₹9860
  39. 5 years
  40. ₹6160

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