Class 8 Maths Worksheet: Compound Interest

Maths worksheets lesson 63: Compound interest · Set 340 · 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 ₹32000 at 5% per year for 2 years (in ₹)?
2. 2.What is the difference between the compound interest and the simple interest on ₹5000 at 12% per year for 2 years (in ₹)?
3. 3.What is the difference between the compound interest and the simple interest on ₹9200 at 5% per year for 2 years (in ₹)?
4. 4.What amount will ₹1600 grow to in 3 years at 25% per year compound interest (in ₹)?
5. 5.Find the compound interest on ₹35000 at 4% per year for 2 years, compounded every year (in ₹).
6. 6.Find the compound interest on ₹52500 at 8% per year for 2 years, compounded every year (in ₹).
7. 7.What is the difference between the compound interest and the simple interest on ₹57500 at 12% per year for 2 years (in ₹)?
8. 8.A town has 49000 people. The population grows by 10% every year. What will the population be after 3 years?
9. 9.What amount will ₹34500 grow to in 1 year at 10% per year compound interest (in ₹)?
10. 10.Find the compound interest on ₹25000 at 12% per year for 2 years, compounded every year (in ₹).
11. 11.What amount will ₹59500 grow to in 2 years at 10% per year compound interest (in ₹)?
12. 12.Find the compound interest on ₹2800 at 20% per year for 1 year, compounded every year (in ₹).
13. 13.What amount will ₹34000 grow to in 3 years at 20% per year compound interest (in ₹)?
14. 14.Find the compound interest on ₹55000 at 8% per year for 2 years, compounded every year (in ₹).
15. 15.What amount will ₹17600 grow to in 2 years at 5% per year compound interest (in ₹)?
16. 16.What is the difference between the compound interest and the simple interest on ₹12500 at 10% per year for 2 years (in ₹)?
17. 17.What amount will ₹5500 grow to in 2 years at 10% per year compound interest (in ₹)?
18. 18.What is the difference between the compound interest and the simple interest on ₹38400 at 25% per year for 2 years (in ₹)?
19. 19.What is the difference between the compound interest and the simple interest on ₹30000 at 5% per year for 2 years (in ₹)?
20. 20.A town has 60000 people. The population grows by 4% every year. What will the population be after 2 years?
21. 21.What is the difference between the compound interest and the simple interest on ₹52800 at 10% per year for 2 years (in ₹)?
22. 22.What is the difference between the compound interest and the simple interest on ₹20000 at 4% per year for 2 years (in ₹)?
23. 23.What is the difference between the compound interest and the simple interest on ₹14200 at 20% per year for 2 years (in ₹)?
24. 24.A scooter is worth ₹38000. Its value falls by 15% every year. What will it be worth after 2 years (in ₹)?
25. 25.What amount will ₹10000 grow to in 2 years at 12% per year compound interest (in ₹)?
26. 26.A scooter is worth ₹40800. Its value falls by 5% every year. What will it be worth after 2 years (in ₹)?
27. 27.What amount will ₹9900 grow to in 1 year at 25% per year compound interest (in ₹)?
28. 28.What is the difference between the compound interest and the simple interest on ₹24200 at 20% per year for 2 years (in ₹)?
29. 29.Find the compound interest on ₹5700 at 10% per year for 1 year, compounded every year (in ₹).
30. 30.What amount will ₹24000 grow to in 2 years at 15% per year compound interest (in ₹)?
31. 31.What is the difference between the compound interest and the simple interest on ₹14800 at 5% per year for 2 years (in ₹)?
32. 32.What amount will ₹34800 grow to in 2 years at 25% per year compound interest (in ₹)?
33. 33.Find the compound interest on ₹23600 at 5% per year for 2 years, compounded every year (in ₹).
34. 34.What is the difference between the compound interest and the simple interest on ₹25600 at 5% per year for 2 years (in ₹)?
35. 35.Find the compound interest on ₹48700 at 10% per year for 2 years, compounded every year (in ₹).
36. 36.Find the compound interest on ₹17500 at 8% per year for 2 years, compounded every year (in ₹).
37. 37.What amount will ₹53500 grow to in 3 years at 20% per year compound interest (in ₹)?
38. 38.Find the compound interest on ₹13900 at 5% per year for 1 year, compounded every year (in ₹).
39. 39.A town has 52800 people. The population grows by 25% every year. What will the population be after 3 years?
40. 40.What amount will ₹9600 grow to in 2 years at 5% per year compound interest (in ₹)?

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