几道GRE数学题
第一个题是排列组合的题，是说十辆车比赛，每次两辆车一起比赛，问如果每辆车需要和其他的每辆车比赛两次，需要举行多少次比赛。可以先考虑每辆车和其他的车各比赛一次，也就是10*9/2,在乘以2就是比赛两次的总场数啦~~（组合的那个符号打不出来，就直接写的算法啦），你可以复习一下排列组合的问题，不过一般不会出太多这样的题。
第二题暂时没太明白，
第三题是说问在小于等于360的范围里，30的倍数的个数是12的倍数的个数的几分之几。（我的理解，你可以算一下，不过我怎么感觉不是这答案呢。。）
GRE数学有多少题及典型题目介绍
GRE数学分为两部分，每部分20题，各35分钟答题时间。所以数学部分一共是40题，70分钟考试时间。
屏幕一侧会提供计算器，常见题型主要有以下三种：
（1）大小比较题：给出一个需要计算才能得出的数据和另一个直接数据，让考生比较大小。通常需要一定的换算。
（2）图表分析题：给出一个带有各种数据的图表，并根据图表内容提出一些问题。
（3）计算及应用：就是直接进行计算的题目，考察考生对于各类公式概念的熟悉程度和基本的计算能力。
具体例题真题我是在雷哥GRE官网和雷哥app上找的，GRE在线题库的题量特别大收录还很全，能在线做题也能在线模考，重点都是免费的！用过其他网站的，都没这个方便好用，不弹广告，诚心推荐！~
GRE 数学 真题 详细资料
真题内容
2.The figure above shows the graph of a function f, defined by f(x)=|2x|+4 for all numbers x. For which of the following functions g defined for all numbers x does the graph of g intersect the graph of f ?
A g(x) x-2
B g(x) x 3
C g(x) 2x - 2
D g(x) 2x 3
E g(x) 3x - 2
3.Each employee of a certain company is in either Department X or Department Y, and there are more than twice as many employees in Department X as in Department Y. The average (arithmetic mean) salary is $25,000 for the employees in Department X and is $35,000 for the employees in Department Y. Which of the following amounts could be the average salary for all of the employees in the company?
Indicate all such amounts.
A $26,000
B $28,000
C $29,000
D $30,000
E $31,000
F $32,000
G $34,000
4.Working alone at its constant rate, machine A produces k car parts in 10 minutes. Working alone at its constant rate, machine B produces k car parts in 15 minutes. How many minutes does it take machines A and B, working simultaneously at their respective constant rates, to produce k car parts? ____________minutes
新gre数学多少题及典型题目介绍
在GRE考试中，GRE数学部分一共有30道题。接下来将为大家分享GRE数学典型题目，一起来了解一下：
1、In the course of an experiment, 95 measurements were recorded, and all of
the measurements were integers. The 95 measurements were then grouped into 7
measurement intervals. The graph above shows the frequency distribution of the
95 measurements by measurement interval.
Quantity A Quantity B
The average (arithmetic The median of the 95
mean) of the 95 measurements
Measurements
2、The random variable X is normally distributed. The values 650 and 850 are
at the 60th and 90th percentiles of the distribution of X, respectively.
Quantity A Quantity B
The value at the 75th 750
percentile of the
distribution of X
3、If 1+x+x2+x3=60, then the average (arithmetic mean) of x, x2, x3, and
x4 is equal to which of the following?
A 12x
B 15x
C 20x
D 30x
E 60x
4、Let S be the set of all positive integers n such that n2 is a multiple of
both
24 and 108. Which of the following integers are divisors of every integer
n
in S ?
Indicate all such integers.
A 12
B 24
C 36
D 72
5、Parallelogram OPQR lies in the xy-plane, as shown in the figure above.
The
coordinates of point P are (2, 4) and the coordinates of point Q are (8,
6).
What are the coordinates of point R ?
A (3, 2)
B (3, 3)
C (4, 4)
D (5, 2)
E (6, 2)
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