标题: which should I choose? [打印本页] 作者: qwrersaa 时间: 2005-1-4 12:48 标题: which should I choose?
某人有bookcase, arrange 10 books per shelf and no books left. If he acquired 10 additional books, and arrange 12 books per shelf, no books left. Ask how many books he has before acquiring the addition 10 books
1) before acquiring, his books less than 96
2) before acquiring, his books more than 24
which should I choose?
Thank you very much作者: sammen 时间: 2005-1-4 21:22