精装修1平米多少钱:中预数学问题(英语)

来源:百度文库 编辑:高考问答 时间:2024/04/28 21:11:54
1a boy has finished reading 160 pages of a story book and he finds that there is 20% of the book left . how many pages are there in the book?

2.among the 800 people ,70% like swimming .
how many people like swimming?

1。一个男孩读完了160业的故事书,但他发现有20%没有读,问此书有几页?
160/80%=200

2。在800人中,70%喜欢游泳,有多少人喜欢游泳?
800*70%=560