GWD数学第8套 Q21和Q22 答案是什么呀？

chenping0123 · 发表于 2010-8-26 17:19:58

Q21:
      ●   ● ●       ●
      A B C       D

   Note: Figure not drawn to scale.

On line segment AD shown, AB = CD and BC = 10. If AD = 100, then CD =

A.   40
B.   45
C.   50
D.   55
E.   60

Q22:
At a garage sale, all of the prices of the items sold were different. If the price of a radio sold at the garage sale was both the 15th highest price and the 20th lowest price among the prices of the items sold, how many items were sold at the garage sale?

A.   33
B.   34
C.   35
D.   36
E.   37

答案是B和E，我觉得正好相反，E和B

SallyJZhang · 发表于 2010-8-26 20:16:19

应该选B&B吧
Q21:（100-10）/2=45
Q22: 15+19=34

GWD数学第8套 Q21和Q22 答案是什么呀？

所属分类: GMAT考试

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