Class 8 Maths Worksheet: Compound Interest

Maths worksheets lesson 63: Compound interest · Set 548 · 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 ₹59800 grow to in 1 year at 10% per year compound interest (in ₹)?
2. 2.Find the compound interest on ₹30000 at 15% per year for 1 year, compounded every year (in ₹).
3. 3.What amount will ₹46300 grow to in 1 year at 4% per year compound interest (in ₹)?
4. 4.A scooter is worth ₹25000. Its value falls by 8% every year. What will it be worth after 2 years (in ₹)?
5. 5.What amount will ₹7600 grow to in 2 years at 20% per year compound interest (in ₹)?
6. 6.Find the compound interest on ₹57100 at 20% per year for 1 year, compounded every year (in ₹).
7. 7.A scooter is worth ₹56200. Its value falls by 25% every year. What will it be worth after 1 year (in ₹)?
8. 8.A town has 19500 people. The population grows by 10% every year. What will the population be after 1 year?
9. 9.What amount will ₹54700 grow to in 1 year at 10% per year compound interest (in ₹)?
10. 10.What is the difference between the compound interest and the simple interest on ₹10000 at 8% per year for 2 years (in ₹)?
11. 11.A scooter is worth ₹53200. Its value falls by 15% every year. What will it be worth after 2 years (in ₹)?
12. 12.A scooter is worth ₹27200. Its value falls by 20% every year. What will it be worth after 1 year (in ₹)?
13. 13.What amount will ₹33200 grow to in 2 years at 15% per year compound interest (in ₹)?
14. 14.What amount will ₹8000 grow to in 3 years at 15% per year compound interest (in ₹)?
15. 15.What is the difference between the compound interest and the simple interest on ₹4800 at 5% per year for 2 years (in ₹)?
16. 16.Find the compound interest on ₹14100 at 5% per year for 1 year, compounded every year (in ₹).
17. 17.Find the compound interest on ₹25000 at 12% per year for 2 years, compounded every year (in ₹).
18. 18.What amount will ₹31300 grow to in 1 year at 10% per year compound interest (in ₹)?
19. 19.What amount will ₹47000 grow to in 1 year at 4% per year compound interest (in ₹)?
20. 20.What amount will ₹24000 grow to in 3 years at 15% per year compound interest (in ₹)?
21. 21.Find the compound interest on ₹18500 at 10% per year for 2 years, compounded every year (in ₹).
22. 22.What is the difference between the compound interest and the simple interest on ₹30000 at 5% per year for 2 years (in ₹)?
23. 23.What amount will ₹10900 grow to in 1 year at 15% per year compound interest (in ₹)?
24. 24.Find the compound interest on ₹9600 at 25% per year for 2 years, compounded every year (in ₹).
25. 25.What is the difference between the compound interest and the simple interest on ₹17500 at 4% per year for 2 years (in ₹)?
26. 26.What is the difference between the compound interest and the simple interest on ₹8800 at 25% per year for 2 years (in ₹)?
27. 27.What is the difference between the compound interest and the simple interest on ₹30000 at 8% per year for 2 years (in ₹)?
28. 28.Find the compound interest on ₹26000 at 25% per year for 2 years, compounded every year (in ₹).
29. 29.What is the difference between the compound interest and the simple interest on ₹54800 at 5% per year for 2 years (in ₹)?
30. 30.What amount will ₹37200 grow to in 2 years at 15% per year compound interest (in ₹)?
31. 31.Find the compound interest on ₹11100 at 15% per year for 1 year, compounded every year (in ₹).
32. 32.Find the compound interest on ₹44400 at 10% per year for 2 years, compounded every year (in ₹).
33. 33.What amount will ₹37000 grow to in 3 years at 10% per year compound interest (in ₹)?
34. 34.Find the compound interest on ₹56000 at 5% per year for 3 years, compounded every year (in ₹).
35. 35.What is the difference between the compound interest and the simple interest on ₹20800 at 25% per year for 2 years (in ₹)?
36. 36.Find the compound interest on ₹8000 at 5% per year for 3 years, compounded every year (in ₹).
37. 37.A scooter is worth ₹45000. Its value falls by 4% every year. What will it be worth after 2 years (in ₹)?
38. 38.What amount will ₹32000 grow to in 3 years at 5% per year compound interest (in ₹)?
39. 39.What is the difference between the compound interest and the simple interest on ₹58000 at 25% per year for 2 years (in ₹)?
40. 40.A town has 40100 people. The population grows by 15% every year. What will the population be after 1 year?

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