最新gre数学难题解析(四)

　　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。

　　31.The average quiz score is closest to which of the following?

　　A.5 B.6 C.7 D.8 E.9

　　32.From the set of 6 letters A, B, C, D, E, and F, there are 20 different 3-letter subsets that could be selected.

　　Column A: The number of 3-letter subsets that include the letter F

　　Column B: 10

　　answer: C

　　33. In the Ratings for Symptom H table shown which of the following could be r, s, and t, respectively?

　　A.0,7,6 B.1,1,9 C.1,10,4 D.2,19,0 E.2,4,5

　　34.If is the center of the circle, then the radius of the circle could be equal to which of the following?

　　A.2 B.3 C.5 D.7 E.9

　　35.If x + 2y = 2 and =9, which of the following is a possible value of y?

　　A.-8 B.-5 C.-3/2 D.3/2 E.5

　　36. In what month was gas use in one of the years nearly double that for the same month in the other year?

　　A. February B.July C.August D.September E.October

　　37.Column A: The total number of feet of fencing, indicated by the solid lines, needed to separate each of the gardens

　　Column B: The total number of feet in the perimeter of the plot

　　38.The curvature of a circle is defined to be the reciprocal of the radius of the circle.

　　Column A: The curvature of a circle with circumference 35

　　Column B: The curvature of a circle with circumference 36

　　39. The length of a rectangular box is 4 inches longer than the depth, and the width of the box is 1 inch less than the length. The depth of the box is between 3 inches and 4 inches.

　　Column A:The volume of the box in cubic inches

　　Column B: 200

　　answer: D

　　40. If n is integer and 99