托福培训学校-环球托福[环球教育旗下品牌]

GRE数学真题(一)

2014-06-05 16:47| 来源:未知

摘要: 本文为考生们整理了一些GRE数学真题(一),希望考生们可以对照这些题目测试一下自身的复习情况。
上海托福培训官网
    GRE考试中数学部分的试题事考生们普遍反映十分较高的地方,之前我们也总结了很多有关GRE数学部分考试的答题技巧和题库等资料,今天环球托福小编特意为大家总结了一部分GRE数学真题给大家来进行“真枪实练”。
        1. Three points in the coordinate system were given (4,5), (-2,-1) n (1,k) and all lie on the same line…
  Col A: k
  Col B: 2
  Ans: C
  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)x3
  C g(x)2x - 2
  D g(x)2x3
  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
  5.
  1)If the dollar amount of sales at Store P was $800,000 for 2006, what was
  the dollar amount of sales at that store for 2008 ?
  A $727,200
  B $792,000
  C $800,000
  D $880,000
  E $968,000
  2)At Store T, the dollar amount of sales for 2007 was what percent of the
  dollar amount of sales for 2008 ?
  Give your answer to the nearest 0.1 percent.
  ___________%
  3)Which of the following statements must be true?
  Indicate all such statements.
  A For 2008 the dollar amount of sales at Store R was greater than that at
  each of the other four stores.
  B The dollar amount of sales at Store S for 2008 was 22 percent less
  than that for 2006.
  C The dollar amount of sales at Store R for 2008 was more than 17
  percent greater than that for 2006.
  6.A certain store sells two types of pens: one type for $2 per pen and the
  other type for $3 per pen. If a customer can spend up to $25 to buy pens at
  the store and there is no sales tax, what is the greatest number of pens the
  customer can buy?
  A 9
  B 10
  C 11
  D 12
  E 20
  7.A list of numbers has a mean of 8 and a standard deviation of 2.5. If x is a
  number in the list that is 2 standard deviations above the mean, what is the
  value of x ?
  x=______
  8.Frequency Distribution for List X
  Number    1    2    3    5
  Frequency    10 20    18 12
  Frequency Distribution for List Y
  Number    6    7    8    9
  Frequency    24 17 10    9
  List X and list Y each contain 60 numbers. Frequency distributions for each list are
  given above. The average (arithmetic mean) of the numbers in list X is 2.7, and the
  average of the numbers in list Y is 7.1. List Z contains 120 numbers: the 60 numbers
  in list X and the 60 numbers in list Y.
  Quantity A    Quantity B
  The average of the 120numbers in list Z  The median of the 120 numbers in list Z
  9.The figure above shows the graph of the function f in the xy-plane. What is
  the value of f ( f (-1)) ?
  A -2
  B -1
  C 0
  D 1
  E 2
  10.By weight, liquid A makes up 8 percent of solution R and 18 percent of solution S.
  If 3 grams of solution R are mixed with 7 grams of solution S, then liquid A accounts
  for what percent of the weight of the resulting solution?
  A 10%
  B 13%
  C 15%
  D 19%
  E 26%
  11.Of the 700 members of a certain organization, 120 are lawyers. Two  members of
  the organization will be selected at random. Which of the  following is closest to the
  probability that neither of the members selected will be a lawyer?
  A 0.5
  B 0.6
  C 0.7
  D 0.8
  E 0.9
  12.Line k lies in the xy-plane. The x-intercept of line k is -4, and line k passes through
  the midpoint of the line segment whose endpoints are (2, 9) and  (2, 0). What is the
  slope of line k ?
  Give your answer as a fraction._______
  13.
  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
  14.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 75
  th
  750
  percentile of the
  distribution of X
  15.If 1+x+x
  2
  +x
  3
  =60, then the average (arithmetic mean) of x, x
  2
  , x
  3
  , and
  x
  4
  is equal to which of the following?
  A 12x
  B 15x
  C 20x
  D 30x
  E 60x
  16.
  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)
  17.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
  18.The range of the heights of the female students in a certain class is 13.2 inches, and
  the range of the heights of the male students in the class is 15.4inches.
  Which  of  the  following  statements  individually  provide(s)  sufficient  additional
  information to determine the range of the heights of all the students in the class?
  Indicate all such statements.
  A  The  tallest  male  student  in  the  class  is  5.8  inches  taller  than  the  tallest  female
  student in the class.
  B The median height of the male students in the class is 1.1 inches  greater than the
  median height of the female students in the class.
  C The average (arithmetic mean) height of the male students in the class  is 4.6 inches
  greater than the average height of the female students in the class.
  19.A  random  variable  Y  is  normally  distributed  with  a  mean  of  200  and  a  standard
  deviation of 10.
  Quantity A    Quantity B
  The probability of the event  1/6
  that the value of Y is
  greater than 220
  20.In a graduating class of 236 students, 142 took algebra and 121 took chemistry.
  What is the greatest possible number of students that could have taken both
  algebra and chemistry?__________students
  以上就是环球托福小编为大家整理的20道GRE数学考试真题,后续还会有GRE数学真题(二)供大家练习。同学们可以选时间进行模拟实战演习来提高自己的能力,相信大家一定可以在真正考试中取得好成绩!