Class 8 Maths Worksheet: Compound Interest

Maths worksheets lesson 63: Compound interest · Set 157 · 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 ₹15200 grow to in 1 year at 25% per year compound interest (in ₹)?
2. 2.What amount will ₹51200 grow to in 3 years at 25% per year compound interest (in ₹)?
3. 3.What is the difference between the compound interest and the simple interest on ₹11800 at 10% per year for 2 years (in ₹)?
4. 4.What is the difference between the compound interest and the simple interest on ₹42500 at 4% per year for 2 years (in ₹)?
5. 5.Find the compound interest on ₹8000 at 25% per year for 1 year, compounded every year (in ₹).
6. 6.Find the compound interest on ₹17200 at 20% per year for 1 year, compounded every year (in ₹).
7. 7.What amount will ₹50000 grow to in 2 years at 4% per year compound interest (in ₹)?
8. 8.Find the compound interest on ₹40000 at 5% per year for 3 years, compounded every year (in ₹).
9. 9.Find the compound interest on ₹11600 at 20% per year for 1 year, compounded every year (in ₹).
10. 10.What amount will ₹5000 grow to in 2 years at 4% per year compound interest (in ₹)?
11. 11.What amount will ₹49000 grow to in 3 years at 10% per year compound interest (in ₹)?
12. 12.A scooter is worth ₹37900. Its value falls by 5% every year. What will it be worth after 1 year (in ₹)?
13. 13.What amount will ₹42000 grow to in 1 year at 20% per year compound interest (in ₹)?
14. 14.What is the difference between the compound interest and the simple interest on ₹60000 at 8% per year for 2 years (in ₹)?
15. 15.What is the difference between the compound interest and the simple interest on ₹42400 at 25% per year for 2 years (in ₹)?
16. 16.Find the compound interest on ₹50000 at 4% per year for 2 years, compounded every year (in ₹).
17. 17.What is the difference between the compound interest and the simple interest on ₹25000 at 12% per year for 2 years (in ₹)?
18. 18.A scooter is worth ₹11600. Its value falls by 25% every year. What will it be worth after 1 year (in ₹)?
19. 19.A town has 44600 people. The population grows by 15% every year. What will the population be after 1 year?
20. 20.What amount will ₹33100 grow to in 1 year at 10% per year compound interest (in ₹)?
21. 21.A town has 34700 people. The population grows by 20% every year. What will the population be after 1 year?
22. 22.A scooter is worth ₹49300. Its value falls by 10% every year. What will it be worth after 2 years (in ₹)?
23. 23.Find the compound interest on ₹58300 at 15% per year for 1 year, compounded every year (in ₹).
24. 24.What is the difference between the compound interest and the simple interest on ₹32500 at 10% per year for 2 years (in ₹)?
25. 25.What amount will ₹58200 grow to in 1 year at 12% per year compound interest (in ₹)?
26. 26.A town has 34400 people. The population grows by 5% every year. What will the population be after 2 years?
27. 27.What amount will ₹40500 grow to in 3 years at 20% per year compound interest (in ₹)?
28. 28.What is the difference between the compound interest and the simple interest on ₹36900 at 20% per year for 2 years (in ₹)?
29. 29.Find the compound interest on ₹13000 at 10% per year for 2 years, compounded every year (in ₹).
30. 30.What amount will ₹54900 grow to in 1 year at 5% per year compound interest (in ₹)?
31. 31.What amount will ₹49200 grow to in 1 year at 5% per year compound interest (in ₹)?
32. 32.What amount will ₹22400 grow to in 3 years at 25% per year compound interest (in ₹)?
33. 33.A scooter is worth ₹47000. Its value falls by 10% every year. What will it be worth after 1 year (in ₹)?
34. 34.What amount will ₹10000 grow to in 3 years at 20% per year compound interest (in ₹)?
35. 35.A scooter is worth ₹12100. Its value falls by 10% every year. What will it be worth after 1 year (in ₹)?
36. 36.What is the difference between the compound interest and the simple interest on ₹7600 at 25% per year for 2 years (in ₹)?
37. 37.What is the difference between the compound interest and the simple interest on ₹32200 at 10% per year for 2 years (in ₹)?
38. 38.What is the difference between the compound interest and the simple interest on ₹5000 at 4% per year for 2 years (in ₹)?
39. 39.Find the compound interest on ₹17400 at 15% per year for 1 year, compounded every year (in ₹).
40. 40.Find the compound interest on ₹46400 at 25% per year for 2 years, compounded every year (in ₹).

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