Class 8 Maths Worksheet: Compound Interest

Maths worksheets lesson 63: Compound interest · Set 51 · 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 ₹29900 grow to in 1 year at 5% per year compound interest (in ₹)?
2. 2.Find the compound interest on ₹5000 at 10% per year for 3 years, compounded every year (in ₹).
3. 3.What is the difference between the compound interest and the simple interest on ₹42500 at 4% per year for 2 years (in ₹)?
4. 4.What amount will ₹52700 grow to in 1 year at 5% per year compound interest (in ₹)?
5. 5.Find the compound interest on ₹40600 at 10% per year for 2 years, compounded every year (in ₹).
6. 6.What amount will ₹5500 grow to in 1 year at 10% per year compound interest (in ₹)?
7. 7.A town has 37900 people. The population grows by 20% every year. What will the population be after 2 years?
8. 8.Find the compound interest on ₹46500 at 15% per year for 1 year, compounded every year (in ₹).
9. 9.A scooter is worth ₹34500. Its value falls by 5% every year. What will it be worth after 1 year (in ₹)?
10. 10.What is the difference between the compound interest and the simple interest on ₹51400 at 10% per year for 2 years (in ₹)?
11. 11.A town has 37000 people. The population grows by 4% every year. What will the population be after 1 year?
12. 12.What amount will ₹12100 grow to in 1 year at 5% per year compound interest (in ₹)?
13. 13.What is the difference between the compound interest and the simple interest on ₹33600 at 5% per year for 2 years (in ₹)?
14. 14.Find the compound interest on ₹32000 at 15% per year for 1 year, compounded every year (in ₹).
15. 15.A town has 42500 people. The population grows by 8% every year. What will the population be after 2 years?
16. 16.What is the difference between the compound interest and the simple interest on ₹22500 at 8% per year for 2 years (in ₹)?
17. 17.What is the difference between the compound interest and the simple interest on ₹35000 at 4% per year for 2 years (in ₹)?
18. 18.What is the difference between the compound interest and the simple interest on ₹8200 at 10% per year for 2 years (in ₹)?
19. 19.Find the compound interest on ₹21500 at 20% per year for 3 years, compounded every year (in ₹).
20. 20.What amount will ₹7200 grow to in 2 years at 25% per year compound interest (in ₹)?
21. 21.Find the compound interest on ₹4800 at 4% per year for 1 year, compounded every year (in ₹).
22. 22.What amount will ₹16000 grow to in 3 years at 5% per year compound interest (in ₹)?
23. 23.What is the difference between the compound interest and the simple interest on ₹16000 at 15% per year for 2 years (in ₹)?
24. 24.What amount will ₹43200 grow to in 3 years at 25% per year compound interest (in ₹)?
25. 25.What is the difference between the compound interest and the simple interest on ₹59300 at 20% per year for 2 years (in ₹)?
26. 26.Find the compound interest on ₹26400 at 25% per year for 2 years, compounded every year (in ₹).
27. 27.What is the difference between the compound interest and the simple interest on ₹33000 at 10% per year for 2 years (in ₹)?
28. 28.A scooter is worth ₹25000. Its value falls by 20% every year. What will it be worth after 1 year (in ₹)?
29. 29.What is the difference between the compound interest and the simple interest on ₹27500 at 4% per year for 2 years (in ₹)?
30. 30.What amount will ₹31600 grow to in 2 years at 5% per year compound interest (in ₹)?
31. 31.A scooter is worth ₹8000. Its value falls by 5% every year. What will it be worth after 3 years (in ₹)?
32. 32.Find the compound interest on ₹44000 at 15% per year for 2 years, compounded every year (in ₹).
33. 33.What amount will ₹11000 grow to in 1 year at 25% per year compound interest (in ₹)?
34. 34.What amount will ₹18400 grow to in 2 years at 20% per year compound interest (in ₹)?
35. 35.Find the compound interest on ₹27500 at 15% per year for 1 year, compounded every year (in ₹).
36. 36.Find the compound interest on ₹57500 at 12% per year for 2 years, compounded every year (in ₹).
37. 37.A scooter is worth ₹32000. Its value falls by 5% every year. What will it be worth after 3 years (in ₹)?
38. 38.What amount will ₹46400 grow to in 2 years at 25% per year compound interest (in ₹)?
39. 39.A scooter is worth ₹33800. Its value falls by 5% every year. What will it be worth after 1 year (in ₹)?
40. 40.A scooter is worth ₹19100. Its value falls by 25% every year. What will it be worth after 1 year (in ₹)?

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