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Simple Interest Worksheet for Kids

Money maths lesson 23: Simple interest · Set 58 · 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).

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  1. 1.₹100 earns 7% simple interest per year. In how many years will the interest be ₹28?
  2. 2.Kavya keeps ₹1000 in a bank at 5% simple interest per year. How many rupees of interest does it earn in 2 years?
  3. 3.Pooja keeps ₹300 in a bank. After 1 year the simple interest is ₹9. What is the rate of interest per year (in %)?
  4. 4.Rohan keeps ₹600 in a bank at 4% simple interest per year. How much money will there be after 1 year (in ₹)?
  5. 5.Tara keeps ₹100 in a bank at 8% simple interest per year. How much money will there be after 5 years (in ₹)?
  6. 6.₹700 earns 2% simple interest per year. In how many years will the interest be ₹28?
  7. 7.Priya keeps ₹400 in a bank. After 1 year the simple interest is ₹32. What is the rate of interest per year (in %)?
  8. 8.Rohan has ₹300. In a piggy bank it stays ₹300. In a bank at 2% simple interest per year, how many rupees more will Rohan have after 2 years?
  9. 9.₹1600 earns 10% simple interest per year. In how many years will the interest be ₹640?
  10. 10.₹1400 earns 7% simple interest per year. In how many years will the interest be ₹490?
  11. 11.Lakshmi keeps ₹400 in a bank. After 1 year the simple interest is ₹24. What is the rate of interest per year (in %)?
  12. 12.Diya keeps ₹1900 in a bank. After 3 years the simple interest is ₹513. What is the rate of interest per year (in %)?
  13. 13.Tara keeps ₹1000 in a bank at 2% simple interest per year. How many rupees of interest does it earn in 5 years?
  14. 14.Ishaan keeps ₹1000 in a bank at 10% simple interest per year. How much money will there be after 2 years (in ₹)?
  15. 15.Aarav keeps ₹300 in a bank. After 2 years the simple interest is ₹18. What is the rate of interest per year (in %)?
  16. 16.Lakshmi has ₹1500. In a piggy bank it stays ₹1500. In a bank at 8% simple interest per year, how many rupees more will Lakshmi have after 5 years?
  17. 17.Pooja keeps ₹700 in a bank at 2% simple interest per year. How much money will there be after 1 year (in ₹)?
  18. 18.₹900 earns 6% simple interest per year. In how many years will the interest be ₹270?
  19. 19.Zoya keeps ₹300 in a bank at 3% simple interest per year. How much money will there be after 5 years (in ₹)?
  20. 20.₹1200 earns 4% simple interest per year. In how many years will the interest be ₹96?
  21. 21.Priya keeps ₹1900 in a bank at 2% simple interest per year. How much money will there be after 1 year (in ₹)?
  22. 22.Meera keeps ₹800 in a bank at 7% simple interest per year. How much money will there be after 1 year (in ₹)?
  23. 23.₹100 earns 6% simple interest per year. In how many years will the interest be ₹6?
  24. 24.Joseph has ₹1300. In a piggy bank it stays ₹1300. In a bank at 8% simple interest per year, how many rupees more will Joseph have after 5 years?
  25. 25.Dev keeps ₹1000 in a bank at 3% simple interest per year. How many rupees of interest does it earn in 3 years?
  26. 26.Dev keeps ₹100 in a bank at 8% simple interest per year. How many rupees of interest does it earn in 2 years?
  27. 27.Meera keeps ₹1900 in a bank at 7% simple interest per year. How many rupees of interest does it earn in 1 year?
  28. 28.Isha keeps ₹1500 in a bank at 5% simple interest per year. How many rupees of interest does it earn in 1 year?
  29. 29.₹200 earns 7% simple interest per year. In how many years will the interest be ₹28?
  30. 30.₹300 earns 7% simple interest per year. In how many years will the interest be ₹105?
  31. 31.Farhan has ₹600. In a piggy bank it stays ₹600. In a bank at 10% simple interest per year, how many rupees more will Farhan have after 1 year?
  32. 32.Ananya keeps ₹1100 in a bank. After 3 years the simple interest is ₹165. What is the rate of interest per year (in %)?
  33. 33.Kabir has ₹900. In a piggy bank it stays ₹900. In a bank at 3% simple interest per year, how many rupees more will Kabir have after 5 years?
  34. 34.Farhan keeps ₹700 in a bank at 6% simple interest per year. How many rupees of interest does it earn in 2 years?
  35. 35.Kabir keeps ₹200 in a bank at 6% simple interest per year. How many rupees of interest does it earn in 4 years?
  36. 36.₹300 earns 3% simple interest per year. In how many years will the interest be ₹27?
  37. 37.Priya keeps ₹100 in a bank at 7% simple interest per year. How many rupees of interest does it earn in 3 years?
  38. 38.Farhan keeps ₹1700 in a bank at 2% simple interest per year. How much money will there be after 1 year (in ₹)?
  39. 39.Vivaan has ₹200. In a piggy bank it stays ₹200. In a bank at 5% simple interest per year, how many rupees more will Vivaan have after 2 years?
  40. 40.Diya keeps ₹1300 in a bank. After 3 years the simple interest is ₹312. What is the rate of interest per year (in %)?

Answer key

  1. 4
  2. 100
  3. 3
  4. 624
  5. 140
  6. 2
  7. 8
  8. 12
  9. 4
  10. 5
  11. 6
  12. 9
  13. 100
  14. 1200
  15. 3
  16. 600
  17. 714
  18. 5
  19. 345
  20. 2
  21. 1938
  22. 856
  23. 1
  24. 520
  25. 90
  26. 16
  27. 133
  28. 75
  29. 2
  30. 5
  31. 60
  32. 5
  33. 135
  34. 84
  35. 48
  36. 3
  37. 21
  38. 1734
  39. 20
  40. 8

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