Class 8 Maths Worksheet: Compound Interest

Maths worksheets lesson 63: Compound interest · Set 642 · 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 ₹4400 grow to in 2 years at 5% per year compound interest (in ₹)?
2. 2.Find the compound interest on ₹53700 at 4% per year for 1 year, compounded every year (in ₹).
3. 3.A scooter is worth ₹26900. Its value falls by 10% every year. What will it be worth after 1 year (in ₹)?
4. 4.A town has 32000 people. The population grows by 5% every year. What will the population be after 3 years?
5. 5.Find the compound interest on ₹54000 at 4% per year for 1 year, compounded every year (in ₹).
6. 6.What amount will ₹29000 grow to in 3 years at 20% per year compound interest (in ₹)?
7. 7.A scooter is worth ₹11100. Its value falls by 15% every year. What will it be worth after 1 year (in ₹)?
8. 8.Find the compound interest on ₹8800 at 15% per year for 2 years, compounded every year (in ₹).
9. 9.What amount will ₹4500 grow to in 1 year at 15% per year compound interest (in ₹)?
10. 10.Find the compound interest on ₹35900 at 12% per year for 1 year, compounded every year (in ₹).
11. 11.Find the compound interest on ₹10400 at 5% per year for 1 year, compounded every year (in ₹).
12. 12.What amount will ₹58000 grow to in 3 years at 10% per year compound interest (in ₹)?
13. 13.What amount will ₹41500 grow to in 3 years at 20% per year compound interest (in ₹)?
14. 14.Find the compound interest on ₹33800 at 5% per year for 1 year, compounded every year (in ₹).
15. 15.What is the difference between the compound interest and the simple interest on ₹12400 at 5% per year for 2 years (in ₹)?
16. 16.A scooter is worth ₹38800. Its value falls by 15% every year. What will it be worth after 2 years (in ₹)?
17. 17.What amount will ₹4000 grow to in 3 years at 10% per year compound interest (in ₹)?
18. 18.Find the compound interest on ₹56000 at 5% per year for 3 years, compounded every year (in ₹).
19. 19.What is the difference between the compound interest and the simple interest on ₹12500 at 12% per year for 2 years (in ₹)?
20. 20.What amount will ₹38600 grow to in 1 year at 12% per year compound interest (in ₹)?
21. 21.What amount will ₹47300 grow to in 1 year at 8% per year compound interest (in ₹)?
22. 22.What amount will ₹56000 grow to in 3 years at 15% per year compound interest (in ₹)?
23. 23.Find the compound interest on ₹48900 at 5% per year for 1 year, compounded every year (in ₹).
24. 24.What is the difference between the compound interest and the simple interest on ₹24000 at 25% per year for 2 years (in ₹)?
25. 25.Find the compound interest on ₹7200 at 10% per year for 1 year, compounded every year (in ₹).
26. 26.A town has 2000 people. The population grows by 10% every year. What will the population be after 3 years?
27. 27.What is the difference between the compound interest and the simple interest on ₹58400 at 25% per year for 2 years (in ₹)?
28. 28.What is the difference between the compound interest and the simple interest on ₹47200 at 25% per year for 2 years (in ₹)?
29. 29.A town has 47100 people. The population grows by 15% every year. What will the population be after 1 year?
30. 30.Find the compound interest on ₹9300 at 5% per year for 1 year, compounded every year (in ₹).
31. 31.What is the difference between the compound interest and the simple interest on ₹3200 at 15% per year for 2 years (in ₹)?
32. 32.Find the compound interest on ₹15000 at 5% per year for 1 year, compounded every year (in ₹).
33. 33.What is the difference between the compound interest and the simple interest on ₹43900 at 20% per year for 2 years (in ₹)?
34. 34.A scooter is worth ₹40000. Its value falls by 15% every year. What will it be worth after 3 years (in ₹)?
35. 35.What amount will ₹45200 grow to in 2 years at 5% per year compound interest (in ₹)?
36. 36.A scooter is worth ₹50500. Its value falls by 20% every year. What will it be worth after 1 year (in ₹)?
37. 37.Find the compound interest on ₹16700 at 10% per year for 1 year, compounded every year (in ₹).
38. 38.Find the compound interest on ₹17300 at 10% per year for 2 years, compounded every year (in ₹).
39. 39.Find the compound interest on ₹53100 at 10% per year for 1 year, compounded every year (in ₹).
40. 40.What amount will ₹56000 grow to in 3 years at 5% per year compound interest (in ₹)?

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