第一次备考GRE过程中,掌握必要的考试技巧和适当的练习,二者缺一不可,新通小编为考生们整理了一些GRE数学考前预测题,并附送答案解析,希望考生充分利用,认真备考哦。
GRE考试取得高分,除了掌握一些答题技巧,再加上不断地练习,没有其他捷径。为了能给大家提供一些练习的机会,新通小编跟大家分享2015年9月GRE数学预测题,希望大家好好珍惜。
预测一:
1. 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
解:设总数为x,设incorrect paper record有y, incorrect electric record有z,则:
x•y•60%=3%•x y=5%
x•z•75%=3%•x z=4%
则,两者至少有一个错误的百分比为5%+4%-3%=6%,所正确答案为94%
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%
解:A和B的并集为:54%+48%-30%=72%,所C为28%.
预测二:
1. The probability that event A will occur is 0.5. The probability that event B will occur is 0.4. The probability that event A or B will occur is 0.8.
Column A:Probability that A and B both occur
Column B:0.1
A. The quantity in Column A is greater
B. The quantity in Column B is greater
C. The two quantities are equal
D. The relationship cannot be determined from the information given
2. Yesterday, at a certain school, the ratio of boys to girls was 1 to 3. Today, an equal number of boys and girls joined the school. The number that joined was greater than zero and no students left.
Column A: Ratio of boys to girls now
Column B: 1/3
A. The quantity in Column A is greater
B. The quantity in Column B is greater
C. The two quantities are equal
D. The relationship cannot be determined from the information given
GRE数学参考答案:1C 2A
获取更多GRE数学备考资料或考试技巧,请联系在线老师或拨打新通教育免费热线。
咨询时间:0:00 ~ 24:00
非咨询时间也可留言
咨询时间:8:00 ~ 24:00
根据您提供的信息
新通留学专业顾问将为您制定专属选校方案
请保持手机畅通,注意接听来电
想要获取更多考试培训信息,可以通过以下方式联系到距离您最近的新通教育;
1、拨打新通教育咨询热线:400-618-8866;
2、点击【立即咨询】 ,我们会有课程老师为你解答考试难题;
3、完成以下表单,轻松预约,预约获取定制学习方案的机会。
*温馨提示:新通承诺绝不泄露您的个人信息
近期活动