Class 8 Maths Worksheet: Compound Interest

Maths worksheets lesson 63: Compound interest · Set 549 · 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.Find the compound interest on ₹47800 at 12% per year for 1 year, compounded every year (in ₹).
2. 2.What amount will ₹6800 grow to in 1 year at 5% per year compound interest (in ₹)?
3. 3.What is the difference between the compound interest and the simple interest on ₹2500 at 4% per year for 2 years (in ₹)?
4. 4.Find the compound interest on ₹34800 at 5% per year for 2 years, compounded every year (in ₹).
5. 5.What is the difference between the compound interest and the simple interest on ₹9200 at 10% per year for 2 years (in ₹)?
6. 6.A scooter is worth ₹28600. Its value falls by 5% every year. What will it be worth after 1 year (in ₹)?
7. 7.Find the compound interest on ₹40000 at 15% per year for 3 years, compounded every year (in ₹).
8. 8.What amount will ₹8000 grow to in 3 years at 5% per year compound interest (in ₹)?
9. 9.Find the compound interest on ₹33500 at 20% per year for 3 years, compounded every year (in ₹).
10. 10.A town has 9600 people. The population grows by 25% every year. What will the population be after 3 years?
11. 11.What is the difference between the compound interest and the simple interest on ₹41000 at 10% per year for 2 years (in ₹)?
12. 12.What amount will ₹42500 grow to in 2 years at 4% per year compound interest (in ₹)?
13. 13.What amount will ₹13000 grow to in 3 years at 10% per year compound interest (in ₹)?
14. 14.What amount will ₹9000 grow to in 1 year at 5% per year compound interest (in ₹)?
15. 15.A town has 10400 people. The population grows by 25% every year. What will the population be after 2 years?
16. 16.What amount will ₹40000 grow to in 3 years at 15% per year compound interest (in ₹)?
17. 17.Find the compound interest on ₹8700 at 5% per year for 1 year, compounded every year (in ₹).
18. 18.What is the difference between the compound interest and the simple interest on ₹25000 at 4% per year for 2 years (in ₹)?
19. 19.What amount will ₹56700 grow to in 2 years at 10% per year compound interest (in ₹)?
20. 20.A scooter is worth ₹55000. Its value falls by 12% every year. What will it be worth after 2 years (in ₹)?
21. 21.Find the compound interest on ₹40000 at 12% per year for 2 years, compounded every year (in ₹).
22. 22.What is the difference between the compound interest and the simple interest on ₹2000 at 25% per year for 2 years (in ₹)?
23. 23.Find the compound interest on ₹30000 at 8% per year for 2 years, compounded every year (in ₹).
24. 24.Find the compound interest on ₹57600 at 10% per year for 2 years, compounded every year (in ₹).
25. 25.What amount will ₹51300 grow to in 2 years at 20% per year compound interest (in ₹)?
26. 26.A scooter is worth ₹34700. Its value falls by 20% every year. What will it be worth after 1 year (in ₹)?
27. 27.Find the compound interest on ₹37400 at 20% per year for 2 years, compounded every year (in ₹).
28. 28.A scooter is worth ₹27400. Its value falls by 10% every year. What will it be worth after 2 years (in ₹)?
29. 29.What amount will ₹4300 grow to in 2 years at 20% per year compound interest (in ₹)?
30. 30.Find the compound interest on ₹39600 at 20% per year for 2 years, compounded every year (in ₹).
31. 31.What amount will ₹23900 grow to in 1 year at 10% per year compound interest (in ₹)?
32. 32.What is the difference between the compound interest and the simple interest on ₹27500 at 8% per year for 2 years (in ₹)?
33. 33.Find the compound interest on ₹38000 at 5% per year for 1 year, compounded every year (in ₹).
34. 34.What is the difference between the compound interest and the simple interest on ₹60000 at 8% per year for 2 years (in ₹)?
35. 35.What is the difference between the compound interest and the simple interest on ₹15200 at 15% per year for 2 years (in ₹)?
36. 36.A scooter is worth ₹10400. Its value falls by 5% every year. What will it be worth after 2 years (in ₹)?
37. 37.What amount will ₹9100 grow to in 1 year at 12% per year compound interest (in ₹)?
38. 38.What is the difference between the compound interest and the simple interest on ₹24400 at 5% per year for 2 years (in ₹)?
39. 39.What amount will ₹33800 grow to in 1 year at 20% per year compound interest (in ₹)?
40. 40.What is the difference between the compound interest and the simple interest on ₹57300 at 20% per year for 2 years (in ₹)?

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