Class 8 Maths Worksheet: Compound Interest

Maths worksheets lesson 63: Compound interest · Set 696 · 40 sums

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.

1. 1.A scooter is worth ₹7600. Its value falls by 5% every year. What will it be worth after 2 years (in ₹)?
2. 2.What amount will ₹42500 grow to in 1 year at 20% per year compound interest (in ₹)?
3. 3.Find the compound interest on ₹28000 at 5% per year for 2 years, compounded every year (in ₹).
4. 4.Find the compound interest on ₹40000 at 5% per year for 3 years, compounded every year (in ₹).
5. 5.What amount will ₹24000 grow to in 3 years at 5% per year compound interest (in ₹)?
6. 6.Find the compound interest on ₹52500 at 8% per year for 2 years, compounded every year (in ₹).
7. 7.What amount will ₹10800 grow to in 2 years at 25% per year compound interest (in ₹)?
8. 8.Find the compound interest on ₹21000 at 20% per year for 3 years, compounded every year (in ₹).
9. 9.A scooter is worth ₹34000. Its value falls by 10% every year. What will it be worth after 2 years (in ₹)?
10. 10.A town has 33600 people. The population grows by 5% every year. What will the population be after 2 years?
11. 11.What amount will ₹57500 grow to in 2 years at 4% per year compound interest (in ₹)?
12. 12.A town has 42500 people. The population grows by 12% every year. What will the population be after 2 years?
13. 13.What is the difference between the compound interest and the simple interest on ₹15000 at 12% per year for 2 years (in ₹)?
14. 14.What amount will ₹45200 grow to in 1 year at 20% per year compound interest (in ₹)?
15. 15.Find the compound interest on ₹52500 at 10% per year for 2 years, compounded every year (in ₹).
16. 16.A scooter is worth ₹18100. Its value falls by 4% every year. What will it be worth after 1 year (in ₹)?
17. 17.Find the compound interest on ₹20000 at 4% per year for 2 years, compounded every year (in ₹).
18. 18.What amount will ₹8000 grow to in 3 years at 15% per year compound interest (in ₹)?
19. 19.A town has 44200 people. The population grows by 20% every year. What will the population be after 2 years?
20. 20.Find the compound interest on ₹4600 at 20% per year for 1 year, compounded every year (in ₹).
21. 21.Find the compound interest on ₹50900 at 25% per year for 1 year, compounded every year (in ₹).
22. 22.A scooter is worth ₹12500. Its value falls by 4% every year. What will it be worth after 2 years (in ₹)?
23. 23.What amount will ₹32000 grow to in 3 years at 15% per year compound interest (in ₹)?
24. 24.What amount will ₹13300 grow to in 1 year at 5% per year compound interest (in ₹)?
25. 25.A town has 2000 people. The population grows by 15% every year. What will the population be after 2 years?
26. 26.A town has 43400 people. The population grows by 12% every year. What will the population be after 1 year?
27. 27.A town has 12500 people. The population grows by 5% every year. What will the population be after 1 year?
28. 28.Find the compound interest on ₹48000 at 15% per year for 3 years, compounded every year (in ₹).
29. 29.A town has 42000 people. The population grows by 20% every year. What will the population be after 3 years?
30. 30.What is the difference between the compound interest and the simple interest on ₹56000 at 20% per year for 2 years (in ₹)?
31. 31.A town has 3000 people. The population grows by 10% every year. What will the population be after 3 years?
32. 32.What is the difference between the compound interest and the simple interest on ₹13800 at 10% per year for 2 years (in ₹)?
33. 33.What is the difference between the compound interest and the simple interest on ₹21500 at 20% per year for 2 years (in ₹)?
34. 34.Find the compound interest on ₹37200 at 20% per year for 1 year, compounded every year (in ₹).
35. 35.A scooter is worth ₹10400. Its value falls by 5% every year. What will it be worth after 2 years (in ₹)?
36. 36.Find the compound interest on ₹9400 at 5% per year for 1 year, compounded every year (in ₹).
37. 37.What amount will ₹3000 grow to in 1 year at 4% per year compound interest (in ₹)?
38. 38.Find the compound interest on ₹15500 at 20% per year for 3 years, compounded every year (in ₹).
39. 39.What is the difference between the compound interest and the simple interest on ₹41700 at 10% per year for 2 years (in ₹)?
40. 40.Find the compound interest on ₹27200 at 5% per year for 2 years, compounded every year (in ₹).

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