Class 8 Maths Worksheet: Compound Interest

Maths worksheets lesson 63: Compound interest · Set 437 · 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 ₹24000 grow to in 2 years at 5% per year compound interest (in ₹)?
2. 2.Find the compound interest on ₹52500 at 12% per year for 2 years, compounded every year (in ₹).
3. 3.A town has 25000 people. The population grows by 8% every year. What will the population be after 2 years?
4. 4.What amount will ₹42800 grow to in 1 year at 20% per year compound interest (in ₹)?
5. 5.What is the difference between the compound interest and the simple interest on ₹42500 at 4% per year for 2 years (in ₹)?
6. 6.Find the compound interest on ₹16000 at 15% per year for 3 years, compounded every year (in ₹).
7. 7.Find the compound interest on ₹27000 at 15% per year for 1 year, compounded every year (in ₹).
8. 8.What is the difference between the compound interest and the simple interest on ₹40000 at 4% per year for 2 years (in ₹)?
9. 9.What amount will ₹57500 grow to in 2 years at 4% per year compound interest (in ₹)?
10. 10.Find the compound interest on ₹2500 at 12% per year for 2 years, compounded every year (in ₹).
11. 11.What amount will ₹50300 grow to in 2 years at 20% per year compound interest (in ₹)?
12. 12.What amount will ₹9600 grow to in 1 year at 15% per year compound interest (in ₹)?
13. 13.A scooter is worth ₹10200. Its value falls by 20% every year. What will it be worth after 2 years (in ₹)?
14. 14.Find the compound interest on ₹20100 at 25% per year for 1 year, compounded every year (in ₹).
15. 15.Find the compound interest on ₹43700 at 8% per year for 1 year, compounded every year (in ₹).
16. 16.Find the compound interest on ₹18000 at 10% per year for 3 years, compounded every year (in ₹).
17. 17.What amount will ₹3200 grow to in 2 years at 15% per year compound interest (in ₹)?
18. 18.What is the difference between the compound interest and the simple interest on ₹12800 at 15% per year for 2 years (in ₹)?
19. 19.What is the difference between the compound interest and the simple interest on ₹2500 at 12% per year for 2 years (in ₹)?
20. 20.Find the compound interest on ₹42500 at 20% per year for 3 years, compounded every year (in ₹).
21. 21.Find the compound interest on ₹13700 at 4% per year for 1 year, compounded every year (in ₹).
22. 22.What amount will ₹52300 grow to in 2 years at 20% per year compound interest (in ₹)?
23. 23.What amount will ₹24000 grow to in 3 years at 5% per year compound interest (in ₹)?
24. 24.Find the compound interest on ₹40000 at 15% per year for 3 years, compounded every year (in ₹).
25. 25.Find the compound interest on ₹39300 at 5% per year for 1 year, compounded every year (in ₹).
26. 26.What is the difference between the compound interest and the simple interest on ₹48000 at 15% per year for 2 years (in ₹)?
27. 27.Find the compound interest on ₹38200 at 15% per year for 1 year, compounded every year (in ₹).
28. 28.A scooter is worth ₹8000. Its value falls by 5% every year. What will it be worth after 3 years (in ₹)?
29. 29.What amount will ₹24000 grow to in 3 years at 15% per year compound interest (in ₹)?
30. 30.A scooter is worth ₹26300. Its value falls by 5% every year. What will it be worth after 1 year (in ₹)?
31. 31.Find the compound interest on ₹48000 at 15% per year for 3 years, compounded every year (in ₹).
32. 32.What amount will ₹50500 grow to in 2 years at 20% per year compound interest (in ₹)?
33. 33.Find the compound interest on ₹60000 at 10% per year for 3 years, compounded every year (in ₹).
34. 34.What is the difference between the compound interest and the simple interest on ₹37300 at 10% per year for 2 years (in ₹)?
35. 35.What is the difference between the compound interest and the simple interest on ₹32500 at 12% per year for 2 years (in ₹)?
36. 36.Find the compound interest on ₹7000 at 12% per year for 1 year, compounded every year (in ₹).
37. 37.A scooter is worth ₹4800. Its value falls by 25% every year. What will it be worth after 3 years (in ₹)?
38. 38.What amount will ₹31600 grow to in 1 year at 20% per year compound interest (in ₹)?
39. 39.Find the compound interest on ₹56800 at 5% per year for 2 years, compounded every year (in ₹).
40. 40.Find the compound interest on ₹6300 at 20% per year for 1 year, compounded every year (in ₹).

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