2015年7月10日GRE数学真题预测

  2015年7月10日的GRE考试就要开始了,下面出国留学网小编为大家整理了2015年7月10日GRE数学真题预测,欢迎参考。

  点击进入2015年7月10日GRE真题预测(汇总)

  2015年7月10日GRE数学真题预测:

  1. Brand R coffee costs $3.25 per pound and brand T coffee costs $2.50 per pound.The number of pounds of brand R in a mixture of brands R and T that costs $3.00 per pound.

  A. 1

  B. 2

  C. 3

  D. 1.2

  2.A widow received 1/3 of her husband’s estate, and each of her three sons received 1/3 of the balance. If the widow and one of her sons received a total of $60,000 from the estate, what was the amount of the estate?

  A.$90,000

  B.$96,000

  C.$108,000

  D.$135,000

  E.$180,000

  3.The charge for a telephone call made at 10:00 a.m. from City Y to City X is $0.50 for the first minute and $0.34 for each additional minute. At these rates, what is the difference between the total cost of three 5-minute calls and the cost of one 15-minute call?

  A.$0.00

  B. $0.16

  C. $0.32

  D. $0.48

  E. $1.00

  4.What was the original price of an item if a discount of 20 percent reduced the price to $100?

  A.$80

  B.$120

  C.$125

  D.$150

  E.$250

  5.Mechanical toy cars A, B, and C, each traveling at its own uniform rate, started from the same point at the same time and raced a 400-meter course.

  When A crossed the finish line. B was 40 meters behind A, and C was 58 meters behind A.

  When B crossed the finish line, how many meters was C from the finish line?

  A.16

  B.18

  C.19

  D.20

  E.22

  6.The daily rate for a hotel room that sleeps 4 people is $39 for one person and x dollars for each additional person. If 3 people take the room for one day and each pays $21 for the room, what is the value of x?

  A.6

  B.8

  C.12

  D.13

  E.24

  7.A research scientist wants to study a certain attribute of dogs. It is estimated that approximately 5 percent of all dogs have this attribute. If the scientist wants to study a sample of N dogs having the attribute, approximately how many dogs should be screened in order to obtain the desired sample size?

  A.N/5

  B.5N

  C.20N

  D.105N

  E.120N

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