You need to photocopy some notes that are written on pages 14, 15, 27, 31, 32 an

游客2024-08-11  13

问题 You need to photocopy some notes that are written on pages 14, 15, 27, 31, 32 and 34 of a pocket notebook. Without damaging the book, how much will that cost at 5p per photocopy?

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答案 25p

解析 (根据常识,14页、15页或者31页、32页必有一种情况可以两页一起被影印,也就是说,4、15、27、3l、32、34页只需被影印5次,根据题干可知每次影印需要5p,所以一共要花费25p。)
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