Class 8 Maths Worksheet: Compound Interest

Maths worksheets lesson 63: Compound interest · Set 646 · 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.What amount will ₹36100 grow to in 1 year at 5% per year compound interest (in ₹)?
2. 2.What is the difference between the compound interest and the simple interest on ₹20400 at 5% per year for 2 years (in ₹)?
3. 3.What amount will ₹48900 grow to in 2 years at 10% per year compound interest (in ₹)?
4. 4.Find the compound interest on ₹27500 at 20% per year for 2 years, compounded every year (in ₹).
5. 5.What amount will ₹29100 grow to in 1 year at 20% per year compound interest (in ₹)?
6. 6.Find the compound interest on ₹49300 at 5% per year for 1 year, compounded every year (in ₹).
7. 7.Find the compound interest on ₹18000 at 4% per year for 1 year, compounded every year (in ₹).
8. 8.What amount will ₹26000 grow to in 1 year at 10% per year compound interest (in ₹)?
9. 9.What is the difference between the compound interest and the simple interest on ₹11300 at 10% per year for 2 years (in ₹)?
10. 10.Find the compound interest on ₹55200 at 15% per year for 2 years, compounded every year (in ₹).
11. 11.What is the difference between the compound interest and the simple interest on ₹52300 at 10% per year for 2 years (in ₹)?
12. 12.What amount will ₹16800 grow to in 1 year at 10% per year compound interest (in ₹)?
13. 13.What amount will ₹42500 grow to in 2 years at 4% per year compound interest (in ₹)?
14. 14.Find the compound interest on ₹2500 at 8% per year for 2 years, compounded every year (in ₹).
15. 15.What is the difference between the compound interest and the simple interest on ₹37500 at 8% per year for 2 years (in ₹)?
16. 16.A scooter is worth ₹45800. Its value falls by 8% every year. What will it be worth after 1 year (in ₹)?
17. 17.What amount will ₹24000 grow to in 3 years at 20% per year compound interest (in ₹)?
18. 18.A town has 24000 people. The population grows by 5% every year. What will the population be after 3 years?
19. 19.A town has 40000 people. The population grows by 15% every year. What will the population be after 3 years?
20. 20.Find the compound interest on ₹9600 at 15% per year for 2 years, compounded every year (in ₹).
21. 21.Find the compound interest on ₹8400 at 25% per year for 2 years, compounded every year (in ₹).
22. 22.Find the compound interest on ₹23800 at 25% per year for 1 year, compounded every year (in ₹).
23. 23.A scooter is worth ₹33100. Its value falls by 8% every year. What will it be worth after 1 year (in ₹)?
24. 24.Find the compound interest on ₹41500 at 20% per year for 3 years, compounded every year (in ₹).
25. 25.What amount will ₹32100 grow to in 2 years at 20% per year compound interest (in ₹)?
26. 26.What is the difference between the compound interest and the simple interest on ₹32000 at 15% per year for 2 years (in ₹)?
27. 27.A town has 6400 people. The population grows by 5% every year. What will the population be after 1 year?
28. 28.Find the compound interest on ₹26600 at 12% per year for 1 year, compounded every year (in ₹).
29. 29.A scooter is worth ₹45200. Its value falls by 15% every year. What will it be worth after 2 years (in ₹)?
30. 30.What amount will ₹35500 grow to in 1 year at 12% per year compound interest (in ₹)?
31. 31.Find the compound interest on ₹10000 at 5% per year for 2 years, compounded every year (in ₹).
32. 32.Find the compound interest on ₹45000 at 20% per year for 2 years, compounded every year (in ₹).
33. 33.What amount will ₹22800 grow to in 1 year at 12% per year compound interest (in ₹)?
34. 34.Find the compound interest on ₹17500 at 4% per year for 2 years, compounded every year (in ₹).
35. 35.What is the difference between the compound interest and the simple interest on ₹30000 at 4% per year for 2 years (in ₹)?
36. 36.What is the difference between the compound interest and the simple interest on ₹19600 at 20% per year for 2 years (in ₹)?
37. 37.What amount will ₹34500 grow to in 3 years at 20% per year compound interest (in ₹)?
38. 38.What amount will ₹24300 grow to in 1 year at 4% per year compound interest (in ₹)?
39. 39.Find the compound interest on ₹24600 at 25% per year for 1 year, compounded every year (in ₹).
40. 40.What is the difference between the compound interest and the simple interest on ₹36800 at 5% per year for 2 years (in ₹)?

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