下面是出国留学网GMAT频道整理的2015年6月GMAT数学机经(二)，欢迎阅读。
6 Is x/3 + 3/x ≥ 2?
(1) x ≥ 3
(2) x ≥ 1
7 Which quadrant does point p(m, n) locate?
(1) M – 1 > 0
(2) N – 1 < 0
8 If points (a,b) and (c,d) are on line k, is the slope of line k positive?
(1) a < c, and b < d.
(2) The product of x-‐intercept and y-‐intercept is negative
9 a and b are positive integers. If 5a – 7(b + 3) = 2, what is the least value of a – b?
A. 5
B. 10
C. 15
D. 20
E. 23
10 Jake, a twelve‐year‐old boy, went to theater with his parents last weekend. The theater gives 30% discount for kid older than five and younger than twelve. If they spent totally 42 dollars for a movie, how much they spent for Jake?
A. 11
B. 12
C. 10
D. 13
E. 14
推荐阅读：