Class 8 Maths Worksheet: Compound Interest

Maths worksheets lesson 63: Compound interest · Set 901 · 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 ₹8000 at 15% per year for 3 years, compounded every year (in ₹).
2. 2.What amount will ₹52500 grow to in 2 years at 4% per year compound interest (in ₹)?
3. 3.What amount will ₹24400 grow to in 2 years at 15% per year compound interest (in ₹)?
4. 4.What is the difference between the compound interest and the simple interest on ₹12000 at 5% per year for 2 years (in ₹)?
5. 5.What is the difference between the compound interest and the simple interest on ₹31200 at 15% per year for 2 years (in ₹)?
6. 6.What is the difference between the compound interest and the simple interest on ₹6000 at 15% per year for 2 years (in ₹)?
7. 7.What amount will ₹17500 grow to in 2 years at 4% per year compound interest (in ₹)?
8. 8.What amount will ₹42500 grow to in 2 years at 12% per year compound interest (in ₹)?
9. 9.Find the compound interest on ₹22000 at 10% per year for 3 years, compounded every year (in ₹).
10. 10.What amount will ₹45000 grow to in 3 years at 10% per year compound interest (in ₹)?
11. 11.What is the difference between the compound interest and the simple interest on ₹36400 at 10% per year for 2 years (in ₹)?
12. 12.Find the compound interest on ₹43200 at 12% per year for 1 year, compounded every year (in ₹).
13. 13.A scooter is worth ₹48000. Its value falls by 5% every year. What will it be worth after 3 years (in ₹)?
14. 14.What amount will ₹48000 grow to in 3 years at 5% per year compound interest (in ₹)?
15. 15.Find the compound interest on ₹31100 at 10% per year for 2 years, compounded every year (in ₹).
16. 16.Find the compound interest on ₹30900 at 5% per year for 1 year, compounded every year (in ₹).
17. 17.What amount will ₹32500 grow to in 2 years at 8% per year compound interest (in ₹)?
18. 18.A scooter is worth ₹9600. Its value falls by 20% every year. What will it be worth after 2 years (in ₹)?
19. 19.What is the difference between the compound interest and the simple interest on ₹55600 at 5% per year for 2 years (in ₹)?
20. 20.Find the compound interest on ₹5500 at 20% per year for 3 years, compounded every year (in ₹).
21. 21.What amount will ₹11000 grow to in 1 year at 25% per year compound interest (in ₹)?
22. 22.A scooter is worth ₹19300. Its value falls by 15% every year. What will it be worth after 1 year (in ₹)?
23. 23.What is the difference between the compound interest and the simple interest on ₹8100 at 20% per year for 2 years (in ₹)?
24. 24.What is the difference between the compound interest and the simple interest on ₹58800 at 15% per year for 2 years (in ₹)?
25. 25.A scooter is worth ₹18800. Its value falls by 8% every year. What will it be worth after 1 year (in ₹)?
26. 26.Find the compound interest on ₹28400 at 15% per year for 2 years, compounded every year (in ₹).
27. 27.A town has 16000 people. The population grows by 5% every year. What will the population be after 3 years?
28. 28.What is the difference between the compound interest and the simple interest on ₹50000 at 4% per year for 2 years (in ₹)?
29. 29.What is the difference between the compound interest and the simple interest on ₹36500 at 20% per year for 2 years (in ₹)?
30. 30.What is the difference between the compound interest and the simple interest on ₹47500 at 4% per year for 2 years (in ₹)?
31. 31.Find the compound interest on ₹53800 at 25% per year for 1 year, compounded every year (in ₹).
32. 32.What amount will ₹37500 grow to in 2 years at 8% per year compound interest (in ₹)?
33. 33.What amount will ₹11000 grow to in 1 year at 5% per year compound interest (in ₹)?
34. 34.What amount will ₹27500 grow to in 2 years at 12% per year compound interest (in ₹)?
35. 35.What amount will ₹4000 grow to in 2 years at 5% per year compound interest (in ₹)?
36. 36.A town has 48400 people. The population grows by 12% every year. What will the population be after 1 year?
37. 37.What amount will ₹20900 grow to in 2 years at 20% per year compound interest (in ₹)?
38. 38.What is the difference between the compound interest and the simple interest on ₹42500 at 8% per year for 2 years (in ₹)?
39. 39.A town has 52500 people. The population grows by 4% every year. What will the population be after 2 years?
40. 40.What amount will ₹23500 grow to in 2 years at 20% per year compound interest (in ₹)?

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