Class 8 Maths Worksheet: Compound Interest

Maths worksheets lesson 63: Compound interest · Set 470 · 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 ₹12800 at 5% per year for 1 year, compounded every year (in ₹).
2. 2.What is the difference between the compound interest and the simple interest on ₹51600 at 5% per year for 2 years (in ₹)?
3. 3.Find the compound interest on ₹57900 at 12% per year for 1 year, compounded every year (in ₹).
4. 4.What amount will ₹11700 grow to in 1 year at 20% per year compound interest (in ₹)?
5. 5.Find the compound interest on ₹24000 at 15% per year for 3 years, compounded every year (in ₹).
6. 6.What amount will ₹56800 grow to in 2 years at 25% per year compound interest (in ₹)?
7. 7.Find the compound interest on ₹9300 at 20% per year for 1 year, compounded every year (in ₹).
8. 8.Find the compound interest on ₹4500 at 12% per year for 1 year, compounded every year (in ₹).
9. 9.What is the difference between the compound interest and the simple interest on ₹6000 at 20% per year for 2 years (in ₹)?
10. 10.What is the difference between the compound interest and the simple interest on ₹45000 at 4% per year for 2 years (in ₹)?
11. 11.Find the compound interest on ₹38000 at 4% per year for 1 year, compounded every year (in ₹).
12. 12.A scooter is worth ₹26200. Its value falls by 4% every year. What will it be worth after 1 year (in ₹)?
13. 13.A town has 35000 people. The population grows by 4% every year. What will the population be after 2 years?
14. 14.Find the compound interest on ₹18800 at 5% per year for 2 years, compounded every year (in ₹).
15. 15.Find the compound interest on ₹12300 at 8% per year for 1 year, compounded every year (in ₹).
16. 16.What is the difference between the compound interest and the simple interest on ₹22500 at 12% per year for 2 years (in ₹)?
17. 17.A scooter is worth ₹24000. Its value falls by 5% every year. What will it be worth after 3 years (in ₹)?
18. 18.What amount will ₹48300 grow to in 2 years at 10% per year compound interest (in ₹)?
19. 19.A scooter is worth ₹5000. Its value falls by 15% every year. What will it be worth after 1 year (in ₹)?
20. 20.Find the compound interest on ₹50000 at 4% per year for 2 years, compounded every year (in ₹).
21. 21.Find the compound interest on ₹40600 at 15% per year for 1 year, compounded every year (in ₹).
22. 22.Find the compound interest on ₹3600 at 5% per year for 2 years, compounded every year (in ₹).
23. 23.A town has 22500 people. The population grows by 5% every year. What will the population be after 1 year?
24. 24.What is the difference between the compound interest and the simple interest on ₹21200 at 25% per year for 2 years (in ₹)?
25. 25.What is the difference between the compound interest and the simple interest on ₹25500 at 20% per year for 2 years (in ₹)?
26. 26.What is the difference between the compound interest and the simple interest on ₹50800 at 20% per year for 2 years (in ₹)?
27. 27.What amount will ₹16000 grow to in 3 years at 5% per year compound interest (in ₹)?
28. 28.What amount will ₹8000 grow to in 3 years at 15% per year compound interest (in ₹)?
29. 29.Find the compound interest on ₹52900 at 20% per year for 1 year, compounded every year (in ₹).
30. 30.What is the difference between the compound interest and the simple interest on ₹5000 at 4% per year for 2 years (in ₹)?
31. 31.What amount will ₹16000 grow to in 3 years at 15% per year compound interest (in ₹)?
32. 32.A town has 39400 people. The population grows by 12% every year. What will the population be after 1 year?
33. 33.What amount will ₹31900 grow to in 1 year at 4% per year compound interest (in ₹)?
34. 34.What is the difference between the compound interest and the simple interest on ₹27500 at 8% per year for 2 years (in ₹)?
35. 35.Find the compound interest on ₹36500 at 20% per year for 1 year, compounded every year (in ₹).
36. 36.Find the compound interest on ₹4300 at 10% per year for 2 years, compounded every year (in ₹).
37. 37.Find the compound interest on ₹24900 at 12% per year for 1 year, compounded every year (in ₹).
38. 38.What amount will ₹16600 grow to in 1 year at 10% per year compound interest (in ₹)?
39. 39.What is the difference between the compound interest and the simple interest on ₹57500 at 8% per year for 2 years (in ₹)?
40. 40.What amount will ₹31300 grow to in 1 year at 20% per year compound interest (in ₹)?

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