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

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.
选项
答案B
解析 Note that Quantity B,, can be expressed as, which can be simplified to . Note that Quantity A is 1/x, and for all nonzero values of x,>0. It follows that; that is, Quantity B is greater than Quantity A. Thus the correct answer is Choice B.
This explanation uses the following strategy.
Strategy 8: Search for a Mathematical Relationship
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本试题收录于： GRE QUANTITATIVE题库GRE分类
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