Class 8 Maths Worksheet: Compound Interest

Maths worksheets lesson 63: Compound interest · Set 544 · 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.A scooter is worth ₹57800. Its value falls by 12% every year. What will it be worth after 1 year (in ₹)?
2. 2.What is the difference between the compound interest and the simple interest on ₹42500 at 12% per year for 2 years (in ₹)?
3. 3.What is the difference between the compound interest and the simple interest on ₹44500 at 10% per year for 2 years (in ₹)?
4. 4.A scooter is worth ₹43400. Its value falls by 15% every year. What will it be worth after 1 year (in ₹)?
5. 5.What amount will ₹2000 grow to in 2 years at 5% per year compound interest (in ₹)?
6. 6.Find the compound interest on ₹41600 at 5% per year for 2 years, compounded every year (in ₹).
7. 7.What amount will ₹52500 grow to in 2 years at 12% per year compound interest (in ₹)?
8. 8.A scooter is worth ₹35800. Its value falls by 20% every year. What will it be worth after 1 year (in ₹)?
9. 9.What amount will ₹48000 grow to in 3 years at 5% per year compound interest (in ₹)?
10. 10.A town has 29700 people. The population grows by 5% every year. What will the population be after 1 year?
11. 11.A town has 47500 people. The population grows by 12% every year. What will the population be after 2 years?
12. 12.A scooter is worth ₹52500. Its value falls by 12% every year. What will it be worth after 2 years (in ₹)?
13. 13.Find the compound interest on ₹9200 at 25% per year for 2 years, compounded every year (in ₹).
14. 14.Find the compound interest on ₹16200 at 5% per year for 1 year, compounded every year (in ₹).
15. 15.What is the difference between the compound interest and the simple interest on ₹22400 at 5% per year for 2 years (in ₹)?
16. 16.Find the compound interest on ₹17500 at 8% per year for 2 years, compounded every year (in ₹).
17. 17.Find the compound interest on ₹8000 at 5% per year for 3 years, compounded every year (in ₹).
18. 18.What is the difference between the compound interest and the simple interest on ₹19600 at 5% per year for 2 years (in ₹)?
19. 19.A scooter is worth ₹23100. Its value falls by 5% every year. What will it be worth after 1 year (in ₹)?
20. 20.What amount will ₹8000 grow to in 3 years at 5% per year compound interest (in ₹)?
21. 21.What is the difference between the compound interest and the simple interest on ₹52500 at 8% per year for 2 years (in ₹)?
22. 22.What amount will ₹60000 grow to in 2 years at 25% per year compound interest (in ₹)?
23. 23.What amount will ₹2500 grow to in 2 years at 8% per year compound interest (in ₹)?
24. 24.A town has 39600 people. The population grows by 10% every year. What will the population be after 1 year?
25. 25.A scooter is worth ₹30500. Its value falls by 4% every year. What will it be worth after 1 year (in ₹)?
26. 26.What is the difference between the compound interest and the simple interest on ₹25000 at 12% per year for 2 years (in ₹)?
27. 27.Find the compound interest on ₹24500 at 8% per year for 1 year, compounded every year (in ₹).
28. 28.What amount will ₹47900 grow to in 2 years at 20% per year compound interest (in ₹)?
29. 29.What amount will ₹55000 grow to in 2 years at 12% per year compound interest (in ₹)?
30. 30.What amount will ₹13000 grow to in 3 years at 10% per year compound interest (in ₹)?
31. 31.A town has 32700 people. The population grows by 10% every year. What will the population be after 2 years?
32. 32.Find the compound interest on ₹29600 at 5% per year for 2 years, compounded every year (in ₹).
33. 33.A scooter is worth ₹40000. Its value falls by 5% every year. What will it be worth after 3 years (in ₹)?
34. 34.A scooter is worth ₹14000. Its value falls by 10% every year. What will it be worth after 3 years (in ₹)?
35. 35.A scooter is worth ₹46100. Its value falls by 15% every year. What will it be worth after 1 year (in ₹)?
36. 36.Find the compound interest on ₹34800 at 15% per year for 2 years, compounded every year (in ₹).
37. 37.Find the compound interest on ₹20000 at 12% per year for 2 years, compounded every year (in ₹).
38. 38.What amount will ₹51600 grow to in 1 year at 8% per year compound interest (in ₹)?
39. 39.A scooter is worth ₹8000. Its value falls by 5% every year. What will it be worth after 3 years (in ₹)?
40. 40.What amount will ₹32000 grow to in 3 years at 5% per year compound interest (in ₹)?

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