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标题: TT GWD-21-13 [打印本页]

作者: aliciafull 时间: 2008-2-29 21:25
标题: TT GWD-21-13

找了半天MS以前没有这道题，我是跳着做的，不知道前面有没有重复，呵呵，希望NN来解答一下，谢谢~

Q13:

Last month, a certain manufacturer sold a
total of 1,000 unites of its two products, A and B. The selling price of each unit of product A
was $1,500, and the selling price of each unit of product B was
$2,000. How many units of product A
did the manufacturer sell last month?

(1) Last month, the
manufacturer’s total revenue from the sale of units of products A and B
was $1,600,000.

(2) Last month, the
manufacturer’s revenue from the sale of units of products A was 3 times
the manufacturer’s revenue from the sale of units of product B.

我觉得题目里没说revenue怎么算呀？

作者: aliciafull 时间: 2008-3-1 22:11
顶

作者: dianecarton 时间: 2008-3-2 22:08
revenue就是收入，在这里用产品单价乘以数量就可以了。因B产品数量可以用1000-A产品数量表示，所以DS给出的两个条件都可以单独构成一个一元一次方程，故选D。

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