考试吧为您整理了“2016年新GRE数学模拟试题(二)”,更多关于GRE考试模拟试题相关内容,请访问考试吧GRE考试网。
查看汇总:2016年新GRE数学模拟试题汇总
1. A,B,C,D,E,F排在1,2,3,4,5,6六个位置上,问A不在1, B不在2, C不在3的情况下,共有多少种排法?
(A) 720
(B) 450
(C) 180
(D) 216
(E) 320
2. 一直线L过点A(5,0), B(0,2), 坐标原点为O, 点P(X,Y)为三角形OAB中一点, 问:Y
(A) 1/4
(B) 3/8
(C) 1/2
(D) 5/8
(E) 3/4
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
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
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
6. 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%
参考答案:
1.解:首先考虑总的可能性为,再考虑A在1,B在2,C在3的可能性分别为,中重复计算了三者交集,分别为AB在1,2,AC在1,3,BC在2,3,所需将三种情况加回,即,但考虑这三种加回的交集又重复计算了ABC在1,2,3的情况,所以应减去P33
2.解:在平面直角坐标系中,T
3.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%
4.解:1/20(14-2.5)+1/30(14-x)=1,得出x=1.25
5.解:划出图表来可以一目了然:A, B均不发生的最大概率为40%,最小概率为0.
6.解:A和B的并集为:54%+48%-30%=72%,所C为28%.
国际英语资讯:Trump not to pursue probe over Hillary Clinton
东京一病人手术中途放屁被严重烧伤!这……
国际英语资讯:Sporadic explosions fill Myanmar northern state in third-day clashes
如何判断一家海鲜餐厅是否靠谱?
国际英语资讯:Over 40 refugees arrested for vandalism in Bulgaria
阿黛尔曾患产后抑郁 将不再举办巡演
大学英语六级作文范文:垃圾短信
国际英语资讯:Hungary issues commemorative stamp to mark Budapest Water Summit
国际英语资讯:U.S. President-elect Trump vows to withdraw from TPP on first day in office
外国人来中国需要些注意什么?
鲍勃迪伦终于发声了!我接受诺贝尔文学奖
国际英语资讯:Syrias Aleppo in abyss amid growing gap in views to defuse tension
干了这碗鸡汤 这7条万能建议可以改变人生!
美国大选场外花絮更惹眼球
年度美剧落幕,说说“选情胶着”的各式表达
国际英语资讯:Frances Hollande to announce decision on possible presidential bid on Dec. 10
2016年12月英语六级作文:读书
国际英语资讯:Syrian army captures swathes of land from rebels in Aleppo
"脱欧"击败"特朗普主义" 当选柯林斯词典年度词汇
国际英语资讯:Over 68,500 people displaced by military operations to retake Iraqs Mosul: UN
习大大在第三届世界互联网大会开幕式上的视频讲话
国际英语资讯:Former French PM Fillon makes surprise lead in conservatives first round primary
国内英语资讯:China, Guinea pledge to enhance production capacity cooperation
你能成为一名年轻企业家吗?三种素质不能少
花样表达“我饿了”
国际英语资讯:Chinese yuan slips again as depreciation pressure remains
《生活大爆炸》或出谢耳朵衍生剧
专家告诉你:香水应该喷在肚脐眼上
国际英语资讯:Cost of Brexit to UK economy is 58 bln pounds: OBR
搭建中厄友好合作的新桥
| 不限 |
| 英语教案 |
| 英语课件 |
| 英语试题 |
| 不限 |
| 不限 |
| 上册 |
| 下册 |
| 不限 |