Class 8 Maths Worksheet: Compound Interest

Maths worksheets lesson 63: Compound interest · Set 324 · 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 is the difference between the compound interest and the simple interest on ₹41400 at 20% per year for 2 years (in ₹)?
2. 2.What amount will ₹17500 grow to in 2 years at 12% per year compound interest (in ₹)?
3. 3.A scooter is worth ₹42700. Its value falls by 20% every year. What will it be worth after 2 years (in ₹)?
4. 4.Find the compound interest on ₹9200 at 8% per year for 1 year, compounded every year (in ₹).
5. 5.What is the difference between the compound interest and the simple interest on ₹37500 at 4% per year for 2 years (in ₹)?
6. 6.Find the compound interest on ₹40000 at 25% per year for 3 years, compounded every year (in ₹).
7. 7.What amount will ₹49600 grow to in 1 year at 12% per year compound interest (in ₹)?
8. 8.Find the compound interest on ₹56400 at 15% per year for 2 years, compounded every year (in ₹).
9. 9.A town has 42000 people. The population grows by 10% every year. What will the population be after 3 years?
10. 10.What amount will ₹2500 grow to in 2 years at 4% per year compound interest (in ₹)?
11. 11.Find the compound interest on ₹47500 at 8% per year for 2 years, compounded every year (in ₹).
12. 12.A town has 15000 people. The population grows by 8% every year. What will the population be after 2 years?
13. 13.What amount will ₹34000 grow to in 1 year at 10% per year compound interest (in ₹)?
14. 14.A scooter is worth ₹20600. Its value falls by 20% every year. What will it be worth after 2 years (in ₹)?
15. 15.A town has 21300 people. The population grows by 10% every year. What will the population be after 1 year?
16. 16.A scooter is worth ₹25000. Its value falls by 12% every year. What will it be worth after 2 years (in ₹)?
17. 17.A town has 13500 people. The population grows by 5% every year. What will the population be after 1 year?
18. 18.What amount will ₹16600 grow to in 1 year at 10% per year compound interest (in ₹)?
19. 19.What is the difference between the compound interest and the simple interest on ₹54000 at 15% per year for 2 years (in ₹)?
20. 20.What amount will ₹39000 grow to in 3 years at 20% per year compound interest (in ₹)?
21. 21.What amount will ₹7500 grow to in 2 years at 4% per year compound interest (in ₹)?
22. 22.A scooter is worth ₹16000. Its value falls by 5% every year. What will it be worth after 3 years (in ₹)?
23. 23.What amount will ₹38000 grow to in 3 years at 10% per year compound interest (in ₹)?
24. 24.What is the difference between the compound interest and the simple interest on ₹32000 at 15% per year for 2 years (in ₹)?
25. 25.Find the compound interest on ₹10000 at 5% per year for 2 years, compounded every year (in ₹).
26. 26.A town has 31300 people. The population grows by 12% every year. What will the population be after 1 year?
27. 27.What is the difference between the compound interest and the simple interest on ₹12500 at 10% per year for 2 years (in ₹)?
28. 28.Find the compound interest on ₹16400 at 20% per year for 2 years, compounded every year (in ₹).
29. 29.A scooter is worth ₹5000. Its value falls by 8% every year. What will it be worth after 2 years (in ₹)?
30. 30.What is the difference between the compound interest and the simple interest on ₹47600 at 5% per year for 2 years (in ₹)?
31. 31.A scooter is worth ₹18500. Its value falls by 5% every year. What will it be worth after 1 year (in ₹)?
32. 32.What is the difference between the compound interest and the simple interest on ₹12800 at 5% per year for 2 years (in ₹)?
33. 33.Find the compound interest on ₹42600 at 15% per year for 1 year, compounded every year (in ₹).
34. 34.Find the compound interest on ₹24000 at 15% per year for 3 years, compounded every year (in ₹).
35. 35.Find the compound interest on ₹3200 at 10% per year for 1 year, compounded every year (in ₹).
36. 36.What is the difference between the compound interest and the simple interest on ₹18400 at 25% per year for 2 years (in ₹)?
37. 37.What is the difference between the compound interest and the simple interest on ₹10000 at 8% per year for 2 years (in ₹)?
38. 38.A town has 40000 people. The population grows by 4% every year. What will the population be after 2 years?
39. 39.A scooter is worth ₹60000. Its value falls by 4% every year. What will it be worth after 2 years (in ₹)?
40. 40.What is the difference between the compound interest and the simple interest on ₹12500 at 12% per year for 2 years (in ₹)?

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