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[Data Sufficiency]

试题详情

题目:

What is the ratio of the average (arithmetic mean) height of students in class X  to the average height of students in class ?
(1) The average height of the students in class X  is 120 centimeters.
(2) The average height of the students in class X  and class Y  combined is 126 centimeters.

选项:

答案:

E

提问:

觉得C可以得出,不明白答案的选项。

解答:

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阅读1419
解答: sysadmin

提问:

觉得C可以得出,不明白答案的选项。

解答:

点赞-1
阅读1420
解答: sysadmin老师

提问:

找不到以前录音了,想知道为什么C不可以。

解答:

点赞0
阅读1418
解答: sysadmin老师

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