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2018年1月20日GRE数学机经分享

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GRE数学机经多为最新GRE考试中可能出现的题目汇总介绍,涉及的知识点符合考试最新趋势,因此考生可以通过机经来找到自己在备考中存在的问题和漏洞,查遗补缺,做好充分准备应对数学考试。下面就是小编为大家整理的1月20日GRE数学机经,希望对大家备考有所帮助。篇末有福利哟~

关键词: GRE考试GRE备考经验GRE数学机经

  GRE数学机经多为最新GRE考试中可能出现的题目汇总介绍,涉及的知识点符合考试最新趋势,因此考生可以通过机经来找到自己在备考中存在的问题和漏洞,查遗补缺,做好充分准备应对数学考试。下面就是小编为大家整理的1月20日GRE数学机经,希望对大家备考有所帮助。篇末有福利哟~

  1. A box contains 100 balls, numbered from 1 to 100.If three balls are selected at random and with replacement from the box, what is the probability that the sum of the three numbers on the balls selected from the box will be odd?

  A. 1/4

  B. 3/8

  C. 1/2

  D. 5/8

  E. 3/4

  答案:C

  2. There are 1200 respondents to a poll, each favoring their preference for candidates A,B, and C. 54% favored A, 48% favored B, and 42% favored C, and there is 30% favored both A and B. What’s the largest possible number of respondents favoring C, but not C&B, nor C&A?

  A. 25%

  B. 30%

  C. 28%

  D. 38%

  E. 40%

  答案:C

  3. In an insurance company, each policy has a paper record and an electric record. For those policies having incorrect paper record, 60% also having incorrect electric record; For policies having incorrect electric record, 75% also having incorrect paper record.3% of all policies have both incorrect paper and incorrect electric records. If we randomly pick out one policy, what’s the probability that the one having both correct paper and correct electric records?

  A. 0.80

  B. 0.94

  C. 0.75

  D. 0.88

  E. 0.92

  答案:B

  4. If Bob can do a job in 20 days and Jane can do the job in 30 days, they work together to do this job and in this period, Bob stop work for 2.5 days and Jane stop work for x days, and the job be finished for 14 days, what is x?

  A. 1.6

  B. 3.2

  C. 1.5

  D. 1.25

  E. 1.15

  答案:D

  5. The probability of A is 60% and the probability of B is 50%, what is the most possible probability that neither A nor B would happen?

  A. 0.80

  B. 0.40

  C. 0.75

  D. 0.55

  E. 0.68

  答案:B

  以上就是有关1月20日GRE数学机经的分享,如果大家还想要了解更多GRE备考机经和备考经验,欢迎关注天道教育留学考试系列APP:

2018年1月20日GRE数学机经分享2018年1月20日GRE数学机经分享

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