← Compound interest lesson New set →

Class 8 Maths Worksheet: Compound Interest

Maths worksheets lesson 63: Compound interest · Set 394 · 40 sums
TalentJR

The method (Grow it every year): Year by year: new amount = amount × (100 + R) ÷ 100. Amount after T years = P × (1 + R/100)ᵀ; compound interest = amount − P. A value falling by R% each year: × (100 − R) ÷ 100 every year. For 2 years, CI − SI = P × R × R ÷ 10000.

NameDateTime takenScore ___ / 40
  1. 1.Find the compound interest on ₹24000 at 15% per year for 2 years, compounded every year (in ₹).
  2. 2.What amount will ₹45200 grow to in 1 year at 20% per year compound interest (in ₹)?
  3. 3.Find the compound interest on ₹51500 at 5% per year for 1 year, compounded every year (in ₹).
  4. 4.Find the compound interest on ₹53000 at 10% per year for 3 years, compounded every year (in ₹).
  5. 5.A scooter is worth ₹41000. Its value falls by 12% every year. What will it be worth after 1 year (in ₹)?
  6. 6.What is the difference between the compound interest and the simple interest on ₹48400 at 25% per year for 2 years (in ₹)?
  7. 7.Find the compound interest on ₹52100 at 10% per year for 2 years, compounded every year (in ₹).
  8. 8.Find the compound interest on ₹46000 at 10% per year for 3 years, compounded every year (in ₹).
  9. 9.A scooter is worth ₹37500. Its value falls by 10% every year. What will it be worth after 1 year (in ₹)?
  10. 10.What is the difference between the compound interest and the simple interest on ₹10000 at 12% per year for 2 years (in ₹)?
  11. 11.What amount will ₹15300 grow to in 1 year at 25% per year compound interest (in ₹)?
  12. 12.Find the compound interest on ₹44300 at 12% per year for 1 year, compounded every year (in ₹).
  13. 13.A scooter is worth ₹9600. Its value falls by 25% every year. What will it be worth after 3 years (in ₹)?
  14. 14.A scooter is worth ₹48000. Its value falls by 5% every year. What will it be worth after 3 years (in ₹)?
  15. 15.What amount will ₹18800 grow to in 2 years at 5% per year compound interest (in ₹)?
  16. 16.Find the compound interest on ₹40000 at 15% per year for 3 years, compounded every year (in ₹).
  17. 17.Find the compound interest on ₹26700 at 12% per year for 1 year, compounded every year (in ₹).
  18. 18.A town has 31300 people. The population grows by 5% every year. What will the population be after 1 year?
  19. 19.Find the compound interest on ₹58000 at 10% per year for 3 years, compounded every year (in ₹).
  20. 20.Find the compound interest on ₹50700 at 12% per year for 1 year, compounded every year (in ₹).
  21. 21.A town has 17200 people. The population grows by 5% every year. What will the population be after 2 years?
  22. 22.A town has 43400 people. The population grows by 8% every year. What will the population be after 1 year?
  23. 23.Find the compound interest on ₹15000 at 12% per year for 2 years, compounded every year (in ₹).
  24. 24.A scooter is worth ₹6400. Its value falls by 25% every year. What will it be worth after 3 years (in ₹)?
  25. 25.Find the compound interest on ₹13000 at 20% per year for 3 years, compounded every year (in ₹).
  26. 26.A scooter is worth ₹14700. Its value falls by 20% every year. What will it be worth after 2 years (in ₹)?
  27. 27.What is the difference between the compound interest and the simple interest on ₹5200 at 25% per year for 2 years (in ₹)?
  28. 28.Find the compound interest on ₹25000 at 10% per year for 2 years, compounded every year (in ₹).
  29. 29.A scooter is worth ₹50000. Its value falls by 12% every year. What will it be worth after 2 years (in ₹)?
  30. 30.What is the difference between the compound interest and the simple interest on ₹32400 at 5% per year for 2 years (in ₹)?
  31. 31.Find the compound interest on ₹46200 at 4% per year for 1 year, compounded every year (in ₹).
  32. 32.What is the difference between the compound interest and the simple interest on ₹27600 at 15% per year for 2 years (in ₹)?
  33. 33.Find the compound interest on ₹25600 at 12% per year for 1 year, compounded every year (in ₹).
  34. 34.What is the difference between the compound interest and the simple interest on ₹27500 at 4% per year for 2 years (in ₹)?
  35. 35.What amount will ₹44400 grow to in 2 years at 25% per year compound interest (in ₹)?
  36. 36.What is the difference between the compound interest and the simple interest on ₹31200 at 25% per year for 2 years (in ₹)?
  37. 37.A scooter is worth ₹55100. Its value falls by 12% every year. What will it be worth after 1 year (in ₹)?
  38. 38.Find the compound interest on ₹37000 at 5% per year for 1 year, compounded every year (in ₹).
  39. 39.What amount will ₹11200 grow to in 3 years at 25% per year compound interest (in ₹)?
  40. 40.A town has 3200 people. The population grows by 25% every year. What will the population be after 3 years?

Answer key

  1. 7740
  2. 54240
  3. 2575
  4. 17543
  5. 36080
  6. 3025
  7. 10941
  8. 15226
  9. 33750
  10. 144
  11. 19125
  12. 5316
  13. 4050
  14. 41154
  15. 20727
  16. 20835
  17. 3204
  18. 32865
  19. 19198
  20. 6084
  21. 18963
  22. 46872
  23. 3816
  24. 2700
  25. 9464
  26. 9408
  27. 325
  28. 5250
  29. 38720
  30. 81
  31. 1848
  32. 621
  33. 3072
  34. 44
  35. 69375
  36. 1950
  37. 48488
  38. 1850
  39. 21875
  40. 6250

Free maths worksheets lessons, practice and worksheets at talentjr.in/maths-worksheets