若5条鱼平均质量为0.8kg，其中3条鱼的质量分别为0.75kg，0.83kg和0.78kg，则其余两条的平均质量为_____kg. -题库考试答案搜索网

若5条鱼平均质量为0.8kg，其中3条鱼的质量分别为0.75kg，0.83kg和0.78kg，则其余两条的平均质量为_____kg.

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2021-07-19 11:24

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标签：学历教育成人高考 2017年成人高考（高起点）《数学》（文史财经类）真题

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