某商场中秋前30天月饼销售总量与时间的关系大致满足,则该商场前

某商场中秋前30天月饼销售总量与时间的关系大致满足,则该商场前天平均售出(如前10天的平均售出为)的月饼最少为(      )

A.18            B.27              C.  20           D. 16 

答案

A


解析:

解析:平均销售量

当且仅当等号成立,即平均销售量的最小值为18,故选A

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