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Simple Interest Worksheet for Kids

Money maths lesson 23: Simple interest · Set 160 · 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.₹1500 earns 6% simple interest per year. In how many years will the interest be ₹180?
  2. 2.₹1100 earns 3% simple interest per year. In how many years will the interest be ₹33?
  3. 3.Sneha has ₹1200. In a piggy bank it stays ₹1200. In a bank at 2% simple interest per year, how many rupees more will Sneha have after 2 years?
  4. 4.Pooja has ₹700. In a piggy bank it stays ₹700. In a bank at 9% simple interest per year, how many rupees more will Pooja have after 1 year?
  5. 5.Vivaan keeps ₹800 in a bank. After 2 years the simple interest is ₹48. What is the rate of interest per year (in %)?
  6. 6.Aarav keeps ₹600 in a bank. After 1 year the simple interest is ₹30. What is the rate of interest per year (in %)?
  7. 7.₹1300 earns 4% simple interest per year. In how many years will the interest be ₹104?
  8. 8.Dev keeps ₹1500 in a bank. After 4 years the simple interest is ₹540. What is the rate of interest per year (in %)?
  9. 9.Aditya keeps ₹400 in a bank at 7% simple interest per year. How much money will there be after 4 years (in ₹)?
  10. 10.Meera keeps ₹1900 in a bank at 4% simple interest per year. How many rupees of interest does it earn in 5 years?
  11. 11.Ishaan keeps ₹1100 in a bank at 3% simple interest per year. How many rupees of interest does it earn in 4 years?
  12. 12.Aditya keeps ₹900 in a bank at 10% simple interest per year. How many rupees of interest does it earn in 4 years?
  13. 13.Gurpreet keeps ₹400 in a bank at 9% simple interest per year. How much money will there be after 2 years (in ₹)?
  14. 14.Zoya has ₹1300. In a piggy bank it stays ₹1300. In a bank at 3% simple interest per year, how many rupees more will Zoya have after 1 year?
  15. 15.Farhan keeps ₹1800 in a bank at 2% simple interest per year. How many rupees of interest does it earn in 3 years?
  16. 16.₹200 earns 5% simple interest per year. In how many years will the interest be ₹20?
  17. 17.₹2000 earns 5% simple interest per year. In how many years will the interest be ₹500?
  18. 18.Lakshmi keeps ₹1300 in a bank at 4% simple interest per year. How many rupees of interest does it earn in 3 years?
  19. 19.Meera has ₹800. In a piggy bank it stays ₹800. In a bank at 4% simple interest per year, how many rupees more will Meera have after 3 years?
  20. 20.Isha keeps ₹1700 in a bank at 4% simple interest per year. How much money will there be after 4 years (in ₹)?
  21. 21.Isha keeps ₹100 in a bank. After 2 years the simple interest is ₹16. What is the rate of interest per year (in %)?
  22. 22.Saanvi has ₹1100. In a piggy bank it stays ₹1100. In a bank at 9% simple interest per year, how many rupees more will Saanvi have after 1 year?
  23. 23.Isha keeps ₹1300 in a bank at 4% simple interest per year. How many rupees of interest does it earn in 2 years?
  24. 24.Ananya has ₹1000. In a piggy bank it stays ₹1000. In a bank at 2% simple interest per year, how many rupees more will Ananya have after 3 years?
  25. 25.Kabir keeps ₹200 in a bank. After 5 years the simple interest is ₹90. What is the rate of interest per year (in %)?
  26. 26.Lakshmi keeps ₹1500 in a bank at 9% simple interest per year. How many rupees of interest does it earn in 1 year?
  27. 27.₹1500 earns 8% simple interest per year. In how many years will the interest be ₹480?
  28. 28.Joseph keeps ₹1300 in a bank at 9% simple interest per year. How many rupees of interest does it earn in 4 years?
  29. 29.Ishaan has ₹100. In a piggy bank it stays ₹100. In a bank at 2% simple interest per year, how many rupees more will Ishaan have after 1 year?
  30. 30.₹1500 earns 7% simple interest per year. In how many years will the interest be ₹315?
  31. 31.Nisha keeps ₹200 in a bank. After 3 years the simple interest is ₹36. What is the rate of interest per year (in %)?
  32. 32.Sneha keeps ₹700 in a bank. After 3 years the simple interest is ₹210. What is the rate of interest per year (in %)?
  33. 33.₹100 earns 7% simple interest per year. In how many years will the interest be ₹14?
  34. 34.Nisha keeps ₹1000 in a bank at 7% simple interest per year. How many rupees of interest does it earn in 2 years?
  35. 35.Ishaan keeps ₹1500 in a bank. After 2 years the simple interest is ₹240. What is the rate of interest per year (in %)?
  36. 36.Rohan keeps ₹500 in a bank at 3% simple interest per year. How many rupees of interest does it earn in 4 years?
  37. 37.Rohan keeps ₹1700 in a bank at 2% simple interest per year. How much money will there be after 2 years (in ₹)?
  38. 38.Riya has ₹300. In a piggy bank it stays ₹300. In a bank at 2% simple interest per year, how many rupees more will Riya have after 2 years?
  39. 39.Ananya keeps ₹800 in a bank at 2% simple interest per year. How many rupees of interest does it earn in 3 years?
  40. 40.₹1200 earns 10% simple interest per year. In how many years will the interest be ₹240?

Answer key

  1. 2
  2. 1
  3. 48
  4. 63
  5. 3
  6. 5
  7. 2
  8. 9
  9. 512
  10. 380
  11. 132
  12. 360
  13. 472
  14. 39
  15. 108
  16. 2
  17. 5
  18. 156
  19. 96
  20. 1972
  21. 8
  22. 99
  23. 104
  24. 60
  25. 9
  26. 135
  27. 4
  28. 468
  29. 2
  30. 3
  31. 6
  32. 10
  33. 2
  34. 140
  35. 8
  36. 60
  37. 1768
  38. 12
  39. 48
  40. 2

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