Compare Quantity A and Quantity B, using additional information centered above the two quantities if such information is given,

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问题 Compare Quantity A and Quantity B, using additional information centered above the two quantities if such information is given, and select one of the following four answer choices:
(A)Quantity A is greater.
(B)Quantity B is greater.
(C)The two quantities are equal.
(D)The relationship cannot be determined from the information given.
A symbol that appears more than once in a question has the same meaning throughout the question.
x is an integer and 23 < x < 27.

选项

答案D

解析 You are given that x is an integer that is greater than 23 and less than 27. So x could be 24, 25, or 26. If x = 24, the median of the five integers 23,24,26,27, and x is 24. Similarly, if x = 25, the median of the five integers is 25, and if x = 26, the median of the five integers is 26. So the median of the five integers is 24,25, or 26. Thus the median of the five integers could be less than, equal to, or greater than 25. The correct answer is Choice D.
This explanation uses the following strategies.
Strategy 11: Divide into Cases
Strategy 13: Determine Whether a Conclusion Follows from the Information Given
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本试题收录于: GRE QUANTITATIVE题库GRE分类
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