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[Data Sufficiency]

试题详情

题目:

If two copying machines work simultaneously at their respective constant rates, how many copies do they produce in 5 minutes?
(1)   One of the machines produces copies at the constant rate of 250 copies per minute.
(2)   One of the machines produces copies at twice the constant rate of the other machine.

选项:

答案:

E

提问:

不明白为什么两个条件一起还无法得出。

解答:

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阅读1069
解答: sysadmin

提问:

不明白为什么两个条件一起还无法得出。

解答:

点赞0
阅读1070
解答: sysadmin老师

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