Class 8 Maths Worksheet: Compound Interest

Maths worksheets lesson 63: Compound interest · Set 965 · 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 ₹33600 at 15% per year for 2 years (in ₹)?
2. 2.A scooter is worth ₹21600. Its value falls by 20% every year. What will it be worth after 1 year (in ₹)?
3. 3.A town has 56000 people. The population grows by 5% every year. What will the population be after 3 years?
4. 4.What is the difference between the compound interest and the simple interest on ₹16700 at 10% per year for 2 years (in ₹)?
5. 5.What amount will ₹16000 grow to in 3 years at 15% per year compound interest (in ₹)?
6. 6.What is the difference between the compound interest and the simple interest on ₹12900 at 20% per year for 2 years (in ₹)?
7. 7.What is the difference between the compound interest and the simple interest on ₹27500 at 12% per year for 2 years (in ₹)?
8. 8.Find the compound interest on ₹42500 at 12% per year for 2 years, compounded every year (in ₹).
9. 9.What amount will ₹37000 grow to in 3 years at 10% per year compound interest (in ₹)?
10. 10.What amount will ₹2000 grow to in 1 year at 5% per year compound interest (in ₹)?
11. 11.What is the difference between the compound interest and the simple interest on ₹12500 at 12% per year for 2 years (in ₹)?
12. 12.Find the compound interest on ₹32000 at 5% per year for 3 years, compounded every year (in ₹).
13. 13.Find the compound interest on ₹17700 at 25% per year for 1 year, compounded every year (in ₹).
14. 14.What amount will ₹6000 grow to in 2 years at 5% per year compound interest (in ₹)?
15. 15.Find the compound interest on ₹59500 at 15% per year for 1 year, compounded every year (in ₹).
16. 16.A scooter is worth ₹54300. Its value falls by 10% every year. What will it be worth after 2 years (in ₹)?
17. 17.What is the difference between the compound interest and the simple interest on ₹34500 at 10% per year for 2 years (in ₹)?
18. 18.A town has 30800 people. The population grows by 15% every year. What will the population be after 1 year?
19. 19.A scooter is worth ₹8500. Its value falls by 20% every year. What will it be worth after 1 year (in ₹)?
20. 20.What amount will ₹37500 grow to in 2 years at 4% per year compound interest (in ₹)?
21. 21.A town has 3200 people. The population grows by 5% every year. What will the population be after 2 years?
22. 22.A scooter is worth ₹52500. Its value falls by 12% every year. What will it be worth after 2 years (in ₹)?
23. 23.Find the compound interest on ₹20000 at 4% per year for 2 years, compounded every year (in ₹).
24. 24.What is the difference between the compound interest and the simple interest on ₹57500 at 12% per year for 2 years (in ₹)?
25. 25.Find the compound interest on ₹46900 at 12% per year for 1 year, compounded every year (in ₹).
26. 26.Find the compound interest on ₹11300 at 10% per year for 2 years, compounded every year (in ₹).
27. 27.What amount will ₹35600 grow to in 2 years at 15% per year compound interest (in ₹)?
28. 28.What is the difference between the compound interest and the simple interest on ₹54800 at 5% per year for 2 years (in ₹)?
29. 29.What amount will ₹45000 grow to in 2 years at 12% per year compound interest (in ₹)?
30. 30.What amount will ₹22500 grow to in 2 years at 12% per year compound interest (in ₹)?
31. 31.What amount will ₹24000 grow to in 2 years at 15% per year compound interest (in ₹)?
32. 32.What amount will ₹32500 grow to in 2 years at 4% per year compound interest (in ₹)?
33. 33.What amount will ₹41900 grow to in 2 years at 10% per year compound interest (in ₹)?
34. 34.Find the compound interest on ₹4900 at 12% per year for 1 year, compounded every year (in ₹).
35. 35.A town has 25000 people. The population grows by 12% every year. What will the population be after 2 years?
36. 36.What amount will ₹50000 grow to in 2 years at 4% per year compound interest (in ₹)?
37. 37.What is the difference between the compound interest and the simple interest on ₹10600 at 10% per year for 2 years (in ₹)?
38. 38.Find the compound interest on ₹16000 at 5% per year for 3 years, compounded every year (in ₹).
39. 39.Find the compound interest on ₹28400 at 25% per year for 2 years, compounded every year (in ₹).
40. 40.What amount will ₹24000 grow to in 3 years at 20% per year compound interest (in ₹)?

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