tailieunhanh - Master gmat 2010 part 55

Is the area of Quadrilateral R greater than the area of Quadrilateral S? (1) The perimeter of R is greater than the perimeter of S. (2) R and S are both squares. 27. If x N y 5 x(x 2 y), then (21 N 22) N (1 N 2) 5 (A) (B) (C) (D) (E) 28. 22 21 0 1 2 30. Distribution Q {15, 10, x, 7, 12, 10} has a median of 11. Which of the following describes all possible values of x? (A) (B) (C) (D) (E) x x x x x ≥ 10 5 11 5 12 5 10 or 12 ≥ 12

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