下面为大家总结了最新的gre猴哥数学难题。有很多gre考生对gre数学考试十分苦恼，其实最有效的方法就是多练习，把数学基础知识记牢，这样才能在考试中对答如流。而gre数学考试中也会出现一些难题，想拿高分也十分不容易。

　　41. If one number is chosen at random from the first 1,000 positive integers, what is the probability that the number chosen is a multiple of both 2 and 8?

　　A.1/125 B.1/8 C.1/2 D.9/16 E.5/8

　　42.Of the commuters to City P,1/2 of those who drive alone are going to change their means of travel while the rest of the commuters to City P will continue to use the same means of travel. If 1/2 of those who are going to change join a car/van pool, what will then be the percent of commuters to City P who travel by car/van pool?

　　A. 49.5% B. 45.9% C.35.2% D.31.9% E.28.3%

　　43. If the total number of commuters to County W is twice the number to County Z, and if the average number of vehicles that transport commuters daily to County W is 30,000, what is the approximate average number of vehicles that transport commuters daily to County Z?

　　A.12,000 B.15,000 C.18,000 D.27,000 E.36,000

　　44.For which of the countries was the difference between its savings rate and its real GNP growth rate least?

　　A. Japan B. Canada C. Switzerland D. The United States E. The United Kingdom

　　45. Which of the following statements can be inferred from the graph?

　　(1).On the average, people in the United States saved about the same amount of money as people in the United Kingdom.

　　(2).The median of the savings rates for the eight countries was greater than 11 percent.

　　(3).Only two of the countries had a higher savings rate than Italy.

　　A. (1)only B.(2)only C.(3)omly D.(1)and(2) E.(2)and(3)

　　46. A certain doctor suggests that an individual’s daily water intake be 1/2 ounce per pound of body weight plus 8 ounces for every 25 pounds by which the individual exceeds his or her ideal weight. If this doctor suggests a daily water intake of 136 ounces for a particular 240-pound individual, how many pounds above his or her weight is that individual?

　　A.25/2 B.16 C.30 D.50 E.120

　　47. For how many of the countries shown was the savings rate more than 5 times the real GNP growth rate?

　　A. Five B. Four C.Three D.Two E.One

　　48.Column A:10/(0.9)*(0.9)

　　 ColumnB:100/9

　　A. The quantity in Column A is greater. B. The quantity in Column B is greater.

　　C. The two quantities are equal.D. The relationship cannot be determined from the information given.

　　49.If the average (arithmetic mean) of x, y, z, 5, and 7 is 8, which of the following must be true?

　　(1).The median of the five numbers cannot be 5.

　　(2).At least one of x, y, and z is greater than 9.

　　(3).The range of the five numbers is 2 or more.

　　A. (1)only B.(2)only C.(3)omly D.(1)and(3) E.(2)and(3)

　　50. The odds that a certain event will occur is the ratio of the probability that it will not occur. If the odds that Pat will win a prize are 4 to 3, what is the probability that Pat will not win the prize?

　　A.1/4 B.1/3 C.3/7 D.4/7 E.3/4

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