Class 8 Maths Worksheet: Compound Interest

Maths worksheets lesson 63: Compound interest · Set 325 · 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 ₹32400 grow to in 1 year at 15% per year compound interest (in ₹)?
2. 2.What amount will ₹12400 grow to in 2 years at 5% per year compound interest (in ₹)?
3. 3.What is the difference between the compound interest and the simple interest on ₹59200 at 25% per year for 2 years (in ₹)?
4. 4.A town has 55200 people. The population grows by 5% every year. What will the population be after 2 years?
5. 5.A scooter is worth ₹57600. Its value falls by 25% every year. What will it be worth after 3 years (in ₹)?
6. 6.Find the compound interest on ₹39000 at 20% per year for 3 years, compounded every year (in ₹).
7. 7.What amount will ₹40000 grow to in 3 years at 20% per year compound interest (in ₹)?
8. 8.What is the difference between the compound interest and the simple interest on ₹60000 at 4% per year for 2 years (in ₹)?
9. 9.A scooter is worth ₹57600. Its value falls by 20% every year. What will it be worth after 2 years (in ₹)?
10. 10.What amount will ₹9600 grow to in 3 years at 25% per year compound interest (in ₹)?
11. 11.Find the compound interest on ₹58800 at 20% per year for 2 years, compounded every year (in ₹).
12. 12.What amount will ₹10800 grow to in 2 years at 5% per year compound interest (in ₹)?
13. 13.Find the compound interest on ₹20800 at 25% per year for 1 year, compounded every year (in ₹).
14. 14.What amount will ₹30700 grow to in 2 years at 10% per year compound interest (in ₹)?
15. 15.A town has 60000 people. The population grows by 12% every year. What will the population be after 2 years?
16. 16.A scooter is worth ₹56700. Its value falls by 20% every year. What will it be worth after 1 year (in ₹)?
17. 17.Find the compound interest on ₹56000 at 5% per year for 3 years, compounded every year (in ₹).
18. 18.Find the compound interest on ₹25600 at 5% per year for 2 years, compounded every year (in ₹).
19. 19.Find the compound interest on ₹8000 at 15% per year for 3 years, compounded every year (in ₹).
20. 20.What is the difference between the compound interest and the simple interest on ₹24000 at 5% per year for 2 years (in ₹)?
21. 21.Find the compound interest on ₹49800 at 10% per year for 1 year, compounded every year (in ₹).
22. 22.What amount will ₹14500 grow to in 1 year at 8% per year compound interest (in ₹)?
23. 23.Find the compound interest on ₹16000 at 10% per year for 1 year, compounded every year (in ₹).
24. 24.Find the compound interest on ₹20000 at 8% per year for 2 years, compounded every year (in ₹).
25. 25.What amount will ₹41600 grow to in 1 year at 12% per year compound interest (in ₹)?
26. 26.What amount will ₹2500 grow to in 2 years at 4% per year compound interest (in ₹)?
27. 27.What amount will ₹27800 grow to in 1 year at 4% per year compound interest (in ₹)?
28. 28.What is the difference between the compound interest and the simple interest on ₹45000 at 8% per year for 2 years (in ₹)?
29. 29.What is the difference between the compound interest and the simple interest on ₹14400 at 15% per year for 2 years (in ₹)?
30. 30.Find the compound interest on ₹48200 at 8% per year for 1 year, compounded every year (in ₹).
31. 31.What is the difference between the compound interest and the simple interest on ₹30000 at 8% per year for 2 years (in ₹)?
32. 32.What is the difference between the compound interest and the simple interest on ₹2400 at 25% per year for 2 years (in ₹)?
33. 33.What is the difference between the compound interest and the simple interest on ₹41000 at 20% per year for 2 years (in ₹)?
34. 34.Find the compound interest on ₹12000 at 10% per year for 2 years, compounded every year (in ₹).
35. 35.A scooter is worth ₹40000. Its value falls by 5% every year. What will it be worth after 3 years (in ₹)?
36. 36.Find the compound interest on ₹40000 at 8% per year for 2 years, compounded every year (in ₹).
37. 37.Find the compound interest on ₹48000 at 5% per year for 1 year, compounded every year (in ₹).
38. 38.Find the compound interest on ₹28700 at 12% per year for 1 year, compounded every year (in ₹).
39. 39.Find the compound interest on ₹40000 at 5% per year for 3 years, compounded every year (in ₹).
40. 40.Find the compound interest on ₹23800 at 10% per year for 2 years, compounded every year (in ₹).

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