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标题: 求问一道GWD的数学题(PS题) [打印本页]

作者: 小炎炎    时间: 2017-1-1 17:18
标题: 求问一道GWD的数学题(PS题)
A retailer bought a machine at a wholesale price of $90 and later on sold it after a 10% discount of the retail price.  If the retailer made a profit equivalent to 20% of the wholesale price, what is the retail price of the machine?

我算出来是80
20%*90=(1-10%)*x-90【x是retail price】

难道不是这样的吗?麻烦各路大神告诉我哪个地方出问题了?


作者: 浪迹天涯的柚子    时间: 2017-1-1 19:41
计算错误
作者: ccp92    时间: 2017-1-1 20:05
同计算错误,应该是120吧
作者: 小炎炎    时间: 2017-1-1 22:17
各位大神见笑了,果然算错了,,,,




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