GMAT数学习题+答案解析分享

2022-06-06 22:58:00

  数学是GMAT考试的一个构成部分,考生在备考的过程中不可忽视数学,为了便于大家更好的备考GMAT数学习题+答案解析分享,大家可以对以下GMAT数学题目进行练习,并在练习结束后参照答案进行分析。

  1、 A glass wasfilled with 10 ounces of water, and 0.01 ounce of the water evaporated each dayduring a twenty-day period. What percentof the original amount of water evaporated during this period?

  A. 0.002%

  B. 0.02%

  C. 0.2%

  D. 2%

  E. 20%

  参考答案:D

  题目翻译:10盎司水,每天蒸发0.01盎司,20天后蒸发了百分之多少的水?

  题目全解:(0.01*20/10)*100%=2%

  2、How manyseconds will it take for a car that is traveling at a constant rate of 45 milesper hour to travel a distance of 116 yards? (1mile = 1,160 yards)

  A. 8

  B. 9

  C. 10

  D. 11

  E. 12

  参考答案:A

  题目翻译:车速45迈,开116yards要几秒?

  题目全解:116/((45*1160)/3600)=8

  3、The 15 homes in a new development areeach to be sold for one of three different prices so that the developerreceives an average (arithmetic mean) of $220,000 per home. If 4 of the homes are to be sold for $275,000each and 5 are to be sold for $200,000 each, what will be the selling price ofeach of the remaining 6 homes?

  (A) $200,000

  (B) $210,000

  (C) $215,000

  (D) $220,000

  (E) $230,000

  参考答案:A

  题目翻译:15个房子要卖,三种不同价格,平均下来一个房子22万。4个卖27万5,5个卖20万。那剩下6个卖多少钱?

  题目全解:(15*22-27.5*4-20*5)/6=20

  4、 For any positive integer n, the lengthof n is defined as the number of prime factors whose product is n. For example, the length of 75 is 3, since 75= 3*5*5. How many two-digit positiveintegers have length 4 ?

  (A) 9

  (B) 11

  (C) 12

  (D) 14

  (E) 15

  参考答案:B

  题目翻译:正数n的长度被定义为它质数因子的个数。多少两位数长度是4?

  题目全解:

  4个2:2*2*2*2=16; (1个)

  3个2:2*2*2*3=24;2*2*2*5=40;2*2*2*7=56; 2*2*2*11=88; (4个)

  2个2:2*2*3*3=36;2*2*3*5=60;2*2*3*7=84;(3个)

  1个2:2*3*3*3=54;2*3*3*5=90;(2个)

  0个2:3*3*3*3=81。(1个)

  共11个。

  5、 In a survey of students, each studentselected from a list of 16 songs the 3 songs that the student liked best. If each song was selected 3 times, how manystudents were surveyed?

  (A) 96

  (B) 48

  (C) 32

  (D) 24

  (E) 16

  参考答案:E

  题目翻译:学生在16首歌中选三首最喜欢的,每首歌被选三次,问几个学生选?

  题目全解:16*3/3=16。

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