某日某农贸市场猪肉按部位每公斤价格如下：1号肉12元 , 2号肉10元，3号肉 14元，当日某人分别花12元，15元和 7元分别购得三种部位的猪肉，则该人所购猪肉的平均价格是（） -题库考试答案搜索网

某日某农贸市场猪肉按部位每公斤价格如下：1号肉12元 , 2号肉10元，3号肉 14元，当日某人分别花12元，15元和 7元分别购得三种部位的猪肉，则该人所购猪肉的平均价格是（）

单选题

2021-07-17 23:58

A、（12+15+7）/ 3             
B、（12+15+14）/（12/12 +15/10+7/14）
C、（12/12+15/10+7/14）/ 3     
D、(12+10+14) / 3 

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正确答案

C

试题解析

标签：电子商务高起专经济统计学 2020年第二学期期末考试

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