Passage 3 In a certain target-shooting game, a team must shoot at seven targets. Exactly one shot is allowed for shooting at each target. The targets are numbered in consecutive order from 1 to 7. The game is being played by a three-member...
Passage 2 An old painting portrays a seated jury of exactly six persons arranged in two parallel rows of three persons each. Each person in the back row is directly behind one person in the front row. The positions of the six jurors, number...
Passage 1 Four women-G, H, I, and J-and four men-R, S, T, and U-are the eight people to be seated at a rectangular table. Three of the people are to sit on one side of the table, three are to sit on the other side of the table, one is to si...
Passage 6 Two male singers, P and S; two female singers, R and V; two male comedians, T and W; and two female comedians, Q and U, are the eight entertainers who are to perform at the Stuart heater on a certain night. Each entertainer is to...
一、高中知识 各种三角诱导公式，和，差，倍，半公式与和差化积，积化和差公式，平面解析几何。 说明：Cracking the GRE Math Test里面第一章就是复习高中知识，我看内容基本差不多了，...
81. n是integer, n^2+n被2除，余数与0比较，答案相等，因为n^2+n=n(n+1)，必为偶数...
61. 还有9^17/8^17 与 9^17+5^9/8^17+5^9 比较大小(前大于后) 62. 圖表題1﹕一個餅圖表示支持x,y的百分比﹐另一個表示支持者收入的百分比﹕3000,58%; 3000-5000,24%;5000,18%. Q1:支持y且收入5000的最大百...
41. If N is positive number, the prime number of between N+1 and N+6 cannot be :0,1,2,3,4,6 . 0...
21. 只有一道难题(50+50*X%)(80+80*X%)-50*80=5400,求X 22. a组{8,9,10,11,12}.b组{25,26,27,28}问各抽出一个两个数相加结果几种情况8 23. 一个两位数n，十位数是U，个位数是5，有一表达是E=(n^2-25)/100,用...
1. n个数从小到大排列，求(n-1)/4，设商为i，余数为j ,则可求得1st Quartile为：(第i+1个数)*(4-j)/4+(第i+2个数)*j/4 2. 4个*，2个的排列方式 15(=) 3 .5双袜子，同时去2只，刚好配对的概率。1/9 4....
GRE数学对大部分考生来说都是比较简单的一个部分，在历来的GRE考生中，中国考生最强的也是数学，拿满分的人比比皆是，甚至有的人觉得数学低于790就是失败。其实我觉得数学固然要...
Eight adjacent offices completely enclose a circular central courtyard. The offices are numbered consecutively, beginning at one of the offices with 1 and proceeding clockwise to 8. Eight junior executives-J, K, L, M, N, O, P, and R-are to...
A person who is drawing up a will has exactly five potential heirs-S, T, U, V, and W. The estate will distribute exactly seven lots of land, which are numbered 1 through 7. All seven lots will be distributed, subject to the following restri...
An old painting portrays a seated jury of exactly six persons arranged in two parallel rows of three persons each. Each person in the back row is directly behind one person in the front row. The positions of the six jurors, numbered 1 throu...
In a certain target-shooting game, a team must shoot at seven targets. Exactly one shot is allowed for shooting at each target. The targets are numbered in consecutive order from 1 to 7. The game is being played by a three-member team consi...
Four women-G, H, I, and J-and four men-R, S, T, and U-are the eight people to be seated at a rectangular table. Three of the people are to sit on one side of the table, three are to sit on the other side of the table, one is to sit at the h...
11. 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 12. 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...
6. 符合 X^2+Y^2=100的整数解共有多少对? 7. Right triangle PQR is to be constructed in the xy-plane so that the right angle is at P and PR is parrallel to the x-axis. The x-and y-coordinates of P,Q,and Rare to be integers that sati...
1. A,B,C,D,E五个人的薪水的median是20000,range不超过50000,其中A,B,C的薪水分别是20000, 40000, 50000,问五个人薪水的平均值可能是多少?...
1、mode(众数) 一堆数中出现频率最高的一个或几个数，例如：mode of 1，1，1，2，3，0，0，0，5 is 1 and 0. 2、range(值域) 一堆数中最大和最小数之差，例如：range of 1，1，2，3，5 is 5-1=4 3、...
