Data Sufficiency

试题详情

题目：

How many liters of apple juice were added to the cranberry juice in a certain container?
(1)  The amount of apple juice that was added was 3/2 the amount of cranberry juice in the container.
(2) There were 5 liters of cranberry juice in the container.
            

选项:

答案:

C

提问：

点此查看答疑
机经，这道题网上的答案写的是分母是一万，我现在的问题就是不是很清楚他最后是怎么化简成y-z÷50的？我想过用平方差公式但是因为它的分子上面是一个减号，所以不是很明白这个地方如何化简[img=/uploads/askimgs/gmat-20230215-102815.jpeg]
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