题目
英语翻译
请翻译并解答 In the library of Hope School,there is a bookshelf,which contains two layers:the upper and the lower.There are 245 books in all on the shelf.Everyday,15 books on the upper layer are checked out,and three days later,the number of the books remaining on the two layers is equal.Please respectively calculate the original number of the books on the two layers of the bookshelf.
请翻译并解答 In the library of Hope School,there is a bookshelf,which contains two layers:the upper and the lower.There are 245 books in all on the shelf.Everyday,15 books on the upper layer are checked out,and three days later,the number of the books remaining on the two layers is equal.Please respectively calculate the original number of the books on the two layers of the bookshelf.
提问时间：2020-11-09
答案
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