作者lovelypinktt (☆蓝蓝☆)
看板GMAT
标题[计量] PP1-182 (PS)
时间Thu Nov 6 22:42:46 2008
抱歉，还有一题要请教大家
PP1-182(PS)
The table shows the number of shares of each of the 5 stocks owned by Mr.
Sami. If Mr. Sami was to sell 20 shares of Stock X and buy 24 shares of
Stock Y, what would be the increase in the range of the numbers of shares of
the 5 stocks owned by Mr. Sami?
(A) 4
(B) 6
(C) 9
(D) 15
(E) 20
PP软体答案是(D) 15
这题没有找到要如何解，希望会的人能教我，谢谢
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