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新GRE数学考点:Total Members.

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  今天针对新gre数学复习,小编给大家整理的是关于Total Members的相关内容,这些概念在考试中一定会考到的。希望考生能再接再厉,取得一个好成绩,突破新gre数学难的困境。

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  Total Members

  Sometimes there are members that do not belong to either set A or B.In that case the total number of members=Size A+Size B-Number of common members+Number of members not in A or B.

  Example:

  In an office, 35 people drink coffee, 27 drink tea, 12 drink both, and 4 drink neither. The total number of people in the office = 35+27-12+4=54.

  In a class of 40 students, 20 study algebra, 15 study geometry, 8 study both.The total number of students that do not study either=40-(20+15-8)=13.

  Remember:

  This is a relation between five numbers, and any one can be calculated given the other four.

  俗话说:“工欲善其事必先利其器”。有一部分考生认为新GRE数学具有一定的难度,这其中的原因是由于考生在复习时没有把新gre数学的基础打牢。想要新gre数学考好,复习的时候一定要把基本概念和重要考点都弄扎实。

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