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Simple Interest Worksheet for Kids

Money maths lesson 23: Simple interest · Set 258 · 40 sums
TalentJR

The method (P × R × T ÷ 100): Interest I = P × R × T ÷ 100. Amount after T years = P + I. Turn it round: R = I × 100 ÷ (P × T) and T = I × 100 ÷ (P × R).

NameDateTime takenScore ___ / 40
  1. 1.Zoya keeps ₹1300 in a bank at 5% simple interest per year. How many rupees of interest does it earn in 3 years?
  2. 2.₹1800 earns 9% simple interest per year. In how many years will the interest be ₹648?
  3. 3.₹1900 earns 4% simple interest per year. In how many years will the interest be ₹76?
  4. 4.₹300 earns 6% simple interest per year. In how many years will the interest be ₹54?
  5. 5.₹1100 earns 9% simple interest per year. In how many years will the interest be ₹297?
  6. 6.Diya keeps ₹700 in a bank at 4% simple interest per year. How much money will there be after 5 years (in ₹)?
  7. 7.Dev keeps ₹900 in a bank at 5% simple interest per year. How many rupees of interest does it earn in 3 years?
  8. 8.Arjun keeps ₹300 in a bank at 5% simple interest per year. How many rupees of interest does it earn in 2 years?
  9. 9.Kavya keeps ₹1700 in a bank. After 4 years the simple interest is ₹680. What is the rate of interest per year (in %)?
  10. 10.Gurpreet keeps ₹2000 in a bank at 8% simple interest per year. How many rupees of interest does it earn in 2 years?
  11. 11.Zoya keeps ₹300 in a bank at 5% simple interest per year. How many rupees of interest does it earn in 2 years?
  12. 12.₹1300 earns 6% simple interest per year. In how many years will the interest be ₹156?
  13. 13.Ishaan keeps ₹1400 in a bank. After 1 year the simple interest is ₹56. What is the rate of interest per year (in %)?
  14. 14.Ananya keeps ₹500 in a bank at 2% simple interest per year. How many rupees of interest does it earn in 1 year?
  15. 15.Ishaan has ₹300. In a piggy bank it stays ₹300. In a bank at 2% simple interest per year, how many rupees more will Ishaan have after 1 year?
  16. 16.₹200 earns 8% simple interest per year. In how many years will the interest be ₹80?
  17. 17.Dev keeps ₹700 in a bank at 3% simple interest per year. How much money will there be after 1 year (in ₹)?
  18. 18.₹200 earns 8% simple interest per year. In how many years will the interest be ₹64?
  19. 19.Gurpreet keeps ₹900 in a bank. After 2 years the simple interest is ₹54. What is the rate of interest per year (in %)?
  20. 20.₹1400 earns 3% simple interest per year. In how many years will the interest be ₹126?
  21. 21.Saanvi keeps ₹2000 in a bank at 5% simple interest per year. How much money will there be after 4 years (in ₹)?
  22. 22.₹1000 earns 4% simple interest per year. In how many years will the interest be ₹40?
  23. 23.Vivaan keeps ₹1000 in a bank at 6% simple interest per year. How many rupees of interest does it earn in 2 years?
  24. 24.Manav keeps ₹800 in a bank. After 2 years the simple interest is ₹160. What is the rate of interest per year (in %)?
  25. 25.Pooja keeps ₹2000 in a bank at 2% simple interest per year. How much money will there be after 4 years (in ₹)?
  26. 26.₹500 earns 10% simple interest per year. In how many years will the interest be ₹200?
  27. 27.₹100 earns 3% simple interest per year. In how many years will the interest be ₹3?
  28. 28.₹600 earns 10% simple interest per year. In how many years will the interest be ₹60?
  29. 29.Lakshmi keeps ₹900 in a bank at 2% simple interest per year. How many rupees of interest does it earn in 4 years?
  30. 30.Farhan keeps ₹1200 in a bank. After 3 years the simple interest is ₹72. What is the rate of interest per year (in %)?
  31. 31.₹1800 earns 2% simple interest per year. In how many years will the interest be ₹144?
  32. 32.Pooja keeps ₹800 in a bank at 2% simple interest per year. How many rupees of interest does it earn in 4 years?
  33. 33.Kavya keeps ₹1100 in a bank at 6% simple interest per year. How many rupees of interest does it earn in 2 years?
  34. 34.₹400 earns 5% simple interest per year. In how many years will the interest be ₹20?
  35. 35.Nisha keeps ₹1000 in a bank at 8% simple interest per year. How much money will there be after 5 years (in ₹)?
  36. 36.Dev keeps ₹900 in a bank at 9% simple interest per year. How many rupees of interest does it earn in 5 years?
  37. 37.₹1000 earns 3% simple interest per year. In how many years will the interest be ₹90?
  38. 38.Dev keeps ₹500 in a bank. After 3 years the simple interest is ₹45. What is the rate of interest per year (in %)?
  39. 39.Priya keeps ₹1100 in a bank. After 3 years the simple interest is ₹66. What is the rate of interest per year (in %)?
  40. 40.₹400 earns 8% simple interest per year. In how many years will the interest be ₹64?

Answer key

  1. 195
  2. 4
  3. 1
  4. 3
  5. 3
  6. 840
  7. 135
  8. 30
  9. 10
  10. 320
  11. 30
  12. 2
  13. 4
  14. 10
  15. 6
  16. 5
  17. 721
  18. 4
  19. 3
  20. 3
  21. 2400
  22. 1
  23. 120
  24. 10
  25. 2160
  26. 4
  27. 1
  28. 1
  29. 72
  30. 2
  31. 4
  32. 64
  33. 132
  34. 1
  35. 1400
  36. 405
  37. 3
  38. 3
  39. 2
  40. 2

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