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标题: math jj [打印本页]

作者: wangxiaoqing 时间: 2009-2-11 10:29
标题: math jj
185.
200 vessals totally cost $1000 remove 12.5 percent defect ones, sold
rest at the same price, revenue is 140 percent of the original cost,
what is the selling price?
175x = 1000*1.4 x=8

Is it right

作者: flutemama 时间: 2009-2-11 10:43

185.175x-875 = 875*1.4 => x = 875*2.4/175 x = 12

Sales - cost = revenue ~~ xiaoqing以为如何阿？

作者: wangxiaoqing 时间: 2009-2-11 12:42

185.175x-875 = 875*1.4 => x = 875*2.4/175 x = 12

Sales - cost = revenue ~~ xiaoqing以为如何阿？

I thought 175x is the revenue or sales

and the original cost is 1000

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