Below is an instruction that describes a task. Write a response that appropriately completes the request in Swahili. Please answer in Swahili.

### Instruction:
Peter has 20 books. He has read 40% of them. His brother has read 10% of them. How many more of these books has Peter read than his brother?

### Response:
 Peter amesoma vitabu 8 kati ya hivyo kwa sababu 20 x .4 = <<20*.4=8>>8
Ndugu yake amesoma vitabu 2 kati ya hivyo kwa sababu 20 x .1 = <<20*.1=2>>2
Peter amesoma vitabu 6 zaidi kuliko ndugu yake kwa sababu 8 - 2 = <<8-2=6>>6