Prep-1-ps-182

ILOVELN

Stock          Number of Shares

V                68

W               11

X                56

Y               94

Z               45

The table shows the number of share of each of the 5 stock owned by Mr. Sami. If Sami was to sell 20 shares of stock X and buy 24shares of stock Y, waht would be the increase in the range of the numbers of shares of the 5 stocks own by Mr. Sami?

4,6,9,15,20

选D15，为什么？

fly_holly

同问！

tonynotears

楼主没抄错题吧？我怎感觉没正确答案......

pumpkinll

是呀?不是24?