某产品售价为67.1元,在采用新技术生产节约10%成本之后,售价不变,利润可比原来翻一番。问该产品最初的成本为多少元? A.51.2 B.54.9 C....

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问题 某产品售价为67.1元,在采用新技术生产节约10%成本之后,售价不变,利润可比原来翻一番。问该产品最初的成本为多少元? A.51.2 B.54.9 C.61 D.62.5
选项
答案 C
解析 费用问题。设该产品最初的成本为x元。由题意可得方程,2(67.1-x)=(67.1-0.9x)解得x=61。答案选择C选项。

相关内容:产品,售价,67.1元,新技术,生产,成本,利润,可比,问该,A.51.2,B.54.9

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