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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 Y?
(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.
(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:
A、 Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient.
B、 Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient.
C、 BOTH statement TOGETHER are sufficient, but NEITHER statement ALONE is sufficient.
D、 EACH statement ALONE is sufficient.
E、 Statements (1) and (2) TOGETHER are NOT sufficient.
答案:
E
提问：
老师，请问1+2为什么不能理解为×＝120，×+y＝126。然后xy不都算出来了吗？
解答：
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提问：
老师，请问1+2为什么不能理解为×＝120，×+y＝126。然后xy不都算出来了吗？
解答：
点赞0
阅读994
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