打一份稿件,第一天打了总数25%,第2天打了总数40%,第三天比第一天多打6页,稿件共有几页
要列式!不要方程
人气:184 ℃ 时间:2019-10-23 04:07:32
解答
6÷[(1-25%-40%)-25%]=60(页)
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