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Simple Interest Worksheet for Kids

Money maths lesson 23: Simple interest · Set 10 · 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.₹300 earns 10% simple interest per year. In how many years will the interest be ₹30?
  2. 2.Lakshmi keeps ₹1100 in a bank. After 3 years the simple interest is ₹231. What is the rate of interest per year (in %)?
  3. 3.Rahul has ₹2000. In a piggy bank it stays ₹2000. In a bank at 10% simple interest per year, how many rupees more will Rahul have after 3 years?
  4. 4.Ishaan keeps ₹1300 in a bank at 10% simple interest per year. How many rupees of interest does it earn in 4 years?
  5. 5.₹600 earns 10% simple interest per year. In how many years will the interest be ₹120?
  6. 6.Gurpreet keeps ₹200 in a bank at 7% simple interest per year. How many rupees of interest does it earn in 2 years?
  7. 7.Manav has ₹900. In a piggy bank it stays ₹900. In a bank at 8% simple interest per year, how many rupees more will Manav have after 3 years?
  8. 8.Diya keeps ₹1600 in a bank at 10% simple interest per year. How much money will there be after 1 year (in ₹)?
  9. 9.Lakshmi keeps ₹600 in a bank. After 3 years the simple interest is ₹180. What is the rate of interest per year (in %)?
  10. 10.Saanvi keeps ₹600 in a bank at 8% simple interest per year. How many rupees of interest does it earn in 2 years?
  11. 11.Riya keeps ₹1700 in a bank at 9% simple interest per year. How much money will there be after 2 years (in ₹)?
  12. 12.Saanvi keeps ₹100 in a bank. After 3 years the simple interest is ₹24. What is the rate of interest per year (in %)?
  13. 13.Rohan keeps ₹700 in a bank at 10% simple interest per year. How much money will there be after 5 years (in ₹)?
  14. 14.Karan keeps ₹200 in a bank. After 1 year the simple interest is ₹20. What is the rate of interest per year (in %)?
  15. 15.Tara keeps ₹500 in a bank at 10% simple interest per year. How many rupees of interest does it earn in 4 years?
  16. 16.Farhan has ₹900. In a piggy bank it stays ₹900. In a bank at 5% simple interest per year, how many rupees more will Farhan have after 2 years?
  17. 17.Meera keeps ₹1100 in a bank at 4% simple interest per year. How many rupees of interest does it earn in 3 years?
  18. 18.Diya keeps ₹1900 in a bank. After 4 years the simple interest is ₹456. What is the rate of interest per year (in %)?
  19. 19.Riya has ₹200. In a piggy bank it stays ₹200. In a bank at 7% simple interest per year, how many rupees more will Riya have after 5 years?
  20. 20.Aditya keeps ₹1500 in a bank at 2% simple interest per year. How much money will there be after 3 years (in ₹)?
  21. 21.Dev has ₹2000. In a piggy bank it stays ₹2000. In a bank at 7% simple interest per year, how many rupees more will Dev have after 4 years?
  22. 22.Rohan keeps ₹700 in a bank at 4% simple interest per year. How much money will there be after 3 years (in ₹)?
  23. 23.Meera keeps ₹1300 in a bank at 2% simple interest per year. How many rupees of interest does it earn in 3 years?
  24. 24.Riya keeps ₹1800 in a bank at 7% simple interest per year. How many rupees of interest does it earn in 5 years?
  25. 25.₹1900 earns 9% simple interest per year. In how many years will the interest be ₹171?
  26. 26.Lakshmi has ₹600. In a piggy bank it stays ₹600. In a bank at 10% simple interest per year, how many rupees more will Lakshmi have after 4 years?
  27. 27.Farhan keeps ₹600 in a bank at 6% simple interest per year. How many rupees of interest does it earn in 3 years?
  28. 28.Farhan keeps ₹1100 in a bank at 8% simple interest per year. How many rupees of interest does it earn in 4 years?
  29. 29.Lakshmi keeps ₹1300 in a bank at 10% simple interest per year. How much money will there be after 5 years (in ₹)?
  30. 30.Isha keeps ₹100 in a bank at 10% simple interest per year. How many rupees of interest does it earn in 3 years?
  31. 31.Gurpreet keeps ₹800 in a bank. After 3 years the simple interest is ₹216. What is the rate of interest per year (in %)?
  32. 32.Lakshmi keeps ₹1300 in a bank. After 3 years the simple interest is ₹390. What is the rate of interest per year (in %)?
  33. 33.Riya keeps ₹1300 in a bank. After 2 years the simple interest is ₹260. What is the rate of interest per year (in %)?
  34. 34.Priya keeps ₹100 in a bank at 10% simple interest per year. How many rupees of interest does it earn in 4 years?
  35. 35.Gurpreet keeps ₹700 in a bank at 4% simple interest per year. How much money will there be after 3 years (in ₹)?
  36. 36.₹500 earns 3% simple interest per year. In how many years will the interest be ₹75?
  37. 37.Lakshmi keeps ₹500 in a bank at 4% simple interest per year. How many rupees of interest does it earn in 3 years?
  38. 38.Isha keeps ₹1300 in a bank at 9% simple interest per year. How many rupees of interest does it earn in 5 years?
  39. 39.Tara keeps ₹1400 in a bank. After 2 years the simple interest is ₹112. What is the rate of interest per year (in %)?
  40. 40.₹700 earns 3% simple interest per year. In how many years will the interest be ₹21?

Answer key

  1. 1
  2. 7
  3. 600
  4. 520
  5. 2
  6. 28
  7. 216
  8. 1760
  9. 10
  10. 96
  11. 2006
  12. 8
  13. 1050
  14. 10
  15. 200
  16. 90
  17. 132
  18. 6
  19. 70
  20. 1590
  21. 560
  22. 784
  23. 78
  24. 630
  25. 1
  26. 240
  27. 108
  28. 352
  29. 1950
  30. 30
  31. 9
  32. 10
  33. 10
  34. 40
  35. 784
  36. 5
  37. 60
  38. 585
  39. 4
  40. 1

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