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2018年1月20日GRE数学机经满分必看 查遗补缺零失误不可不看

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2018 年 1 月 20 日 GRE 数学机经满分必看 查遗补缺零失误不可不看

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2018 年 1 月过半,考生们就将迎来 1 月 20 日的gre考试。小编相信许多参加 1 月 20 日 GRE 考试的同学都抱着年初就搞定 GRE 的美好愿望,但能否如愿以偿大家还需要多加努力。考前冲刺看看机经当然也是再好不过的选择。为了帮助大家更顺利地备考 1 月 20 日的 GRE 考试,下面小编就为大家带来小站 GRE 点题专家组精心整理的最新 2018 年 1 月 20 日 GRE 机经。下面是 GRE 数学预测机经,一起来看!

2018 年 1 月 20 日 GRE 机经其他题型预测:作文 / 长阅读 / 短阅读 / 逻辑 / 等价 / 填空 请走这里

题目

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

精选详细解析请点击查看

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%

精选详细解析请点击查看

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

精选详细解析请点击查看

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

精选详细解析请点击查看

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?

B. 0.40

D. 0.55

E. 0.68

精选详细解析请点击查看

GRE 机经为小站 GRE 频道独家原创 gre.zhan.com,转载请以超链接形式标注本文出处,并附上此申明,否则将追究法律责任。

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2018 年 1 月过半,考生们就将迎来 1 月 20 日的gre考试。小编相信许多参加 1 月 20 日 GRE 考试的同学都抱着年初就搞定 GRE 的美好愿望,但能否如愿以偿大家还需要多加努力。考前冲刺看看机经当然也是再好不过的选择。为了帮助大家更顺利地备考 1 月 20 日的 GRE 考试,下面小编就为大家带来小站 GRE 点题专家组精心整理的最新 2018 年 1 月 20 日 GRE 机经。下面是 GRE 数学预测机经,一起来看!

2018 年 1 月 20 日 GRE 机经其他题型预测:作文 / 长阅读 / 短阅读 / 逻辑 / 等价 / 填空 请走这里

题目

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

精选详细解析请点击查看

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%

精选详细解析请点击查看

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

精选详细解析请点击查看

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

精选详细解析请点击查看

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?

B. 0.40

D. 0.55

E. 0.68

精选详细解析请点击查看

GRE 机经为小站 GRE 频道独家原创 gre.zhan.com,转载请以超链接形式标注本文出处,并附上此申明,否则将追究法律责任。

关注微信公众号【留学战书】:

人手一本经典 GRE 考试用书 在线免费阅读


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