数学题求救!!

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查看11 | 回复2 | 2010-7-21 18:18:08 | 显示全部楼层 |阅读模式
Of the computer monitors manufactured at a certain plant in November,5/7 were approved for sale by quality control,Of those monitors approved for sale,7/8 were sold in stores, and of the monitors sold in stores,1/3 were not sold at the suggested retail price.If 3,500 of the monitors manufactured in November were sold at the suggested retail price,how many monitors were manufactured at this plant in November??

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千问 | 2010-7-21 18:18:08 | 显示全部楼层
这个问题是英文的..呵呵有兴趣! 主要是5/7通过了质监,然后又有7/8的在商店销售,又有1/3的没有再指定的价格卖出去。如果在十一月总共卖出去3500个,问,十一月总共生产了多少个?如果意思是这样的话那么计算就是下面: 设:十一月总生产X件那么:(X*5/7)*(7/8)*(1-1/3)=3500。解出这个结果就是了。 如果我翻译错误,那么我就自愧不如咯 哈
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千问 | 2010-7-21 18:18:08 | 显示全部楼层
答案为8400过程:sold at the suggested retail price---5250sold in stores----6000approved for sale by quality control----8400
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