Class 8 Maths Worksheet: Compound Interest

Maths worksheets lesson 63: Compound interest · Set 358 · 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 ₹12000 grow to in 2 years at 25% per year compound interest (in ₹)?
2. 2.Find the compound interest on ₹32500 at 4% per year for 2 years, compounded every year (in ₹).
3. 3.What is the difference between the compound interest and the simple interest on ₹37500 at 4% per year for 2 years (in ₹)?
4. 4.What is the difference between the compound interest and the simple interest on ₹35000 at 4% per year for 2 years (in ₹)?
5. 5.What is the difference between the compound interest and the simple interest on ₹54100 at 10% per year for 2 years (in ₹)?
6. 6.Find the compound interest on ₹47000 at 8% per year for 1 year, compounded every year (in ₹).
7. 7.What amount will ₹47200 grow to in 1 year at 10% per year compound interest (in ₹)?
8. 8.What is the difference between the compound interest and the simple interest on ₹19800 at 20% per year for 2 years (in ₹)?
9. 9.A scooter is worth ₹17900. Its value falls by 8% 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 ₹55000 at 8% per year for 2 years (in ₹)?
11. 11.What is the difference between the compound interest and the simple interest on ₹27500 at 4% per year for 2 years (in ₹)?
12. 12.Find the compound interest on ₹5900 at 8% per year for 1 year, compounded every year (in ₹).
13. 13.What amount will ₹9300 grow to in 2 years at 10% per year compound interest (in ₹)?
14. 14.What amount will ₹27500 grow to in 2 years at 8% per year compound interest (in ₹)?
15. 15.Find the compound interest on ₹40000 at 5% per year for 3 years, compounded every year (in ₹).
16. 16.A town has 12000 people. The population grows by 25% every year. What will the population be after 2 years?
17. 17.What amount will ₹3600 grow to in 2 years at 15% per year compound interest (in ₹)?
18. 18.A town has 11600 people. The population grows by 5% every year. What will the population be after 1 year?
19. 19.What is the difference between the compound interest and the simple interest on ₹31600 at 5% per year for 2 years (in ₹)?
20. 20.What amount will ₹21500 grow to in 1 year at 25% per year compound interest (in ₹)?
21. 21.What is the difference between the compound interest and the simple interest on ₹9500 at 20% per year for 2 years (in ₹)?
22. 22.Find the compound interest on ₹35800 at 10% per year for 1 year, compounded every year (in ₹).
23. 23.What amount will ₹19200 grow to in 3 years at 25% per year compound interest (in ₹)?
24. 24.Find the compound interest on ₹39400 at 10% per year for 2 years, compounded every year (in ₹).
25. 25.What amount will ₹16000 grow to in 3 years at 5% per year compound interest (in ₹)?
26. 26.A scooter is worth ₹53100. Its value falls by 10% every year. What will it be worth after 1 year (in ₹)?
27. 27.What is the difference between the compound interest and the simple interest on ₹36000 at 5% per year for 2 years (in ₹)?
28. 28.Find the compound interest on ₹47200 at 4% per year for 1 year, compounded every year (in ₹).
29. 29.What amount will ₹16000 grow to in 3 years at 15% per year compound interest (in ₹)?
30. 30.A town has 4000 people. The population grows by 20% every year. What will the population be after 3 years?
31. 31.Find the compound interest on ₹49100 at 20% per year for 1 year, compounded every year (in ₹).
32. 32.Find the compound interest on ₹31200 at 10% per year for 1 year, compounded every year (in ₹).
33. 33.What is the difference between the compound interest and the simple interest on ₹38500 at 10% per year for 2 years (in ₹)?
34. 34.Find the compound interest on ₹28500 at 20% per year for 3 years, compounded every year (in ₹).
35. 35.What amount will ₹58100 grow to in 1 year at 20% per year compound interest (in ₹)?
36. 36.What amount will ₹15800 grow to in 1 year at 20% per year compound interest (in ₹)?
37. 37.A scooter is worth ₹56000. Its value falls by 15% every year. What will it be worth after 3 years (in ₹)?
38. 38.Find the compound interest on ₹46800 at 20% per year for 1 year, compounded every year (in ₹).
39. 39.A scooter is worth ₹31800. Its value falls by 20% every year. What will it be worth after 1 year (in ₹)?
40. 40.What is the difference between the compound interest and the simple interest on ₹12500 at 8% per year for 2 years (in ₹)?

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