国际顶尖MBA申请交流平台--TOPWAY MBA

标题: 模考数学题没弄懂一道，求助大神！ [打印本页]

作者: ItalyPirlo 时间: 2012-12-24 20:46 标题: 模考数学题没弄懂一道，求助大神！

求助帖：在mba官网模拟测试一里面，做了没看懂的一道题，求高手大神指点！

Stock       Number of share
V          68
W          112
X          56
Y          94
Z          45

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?

1) 4
2) 6
3) 9
4) 25
5) 20

作者: candybecky 时间: 2012-12-25 06:52

这道题解析答案是多少啊？
我理解的是求极差的变化
算出来时15.。。。

作者: bradfordchens 时间: 2012-12-25 20:39

Stock Number of shares Before and After transaction
V - 68 - 68
W - 112 - 112
X - 56 - 36
Y - 94 - 118
Z - 45 - 45
Previous range - 67 (112-45)
Range after transaction - 82 (118-36)
Increase = 82 - 67 = 15 D

作者: ItalyPirlo 时间: 2012-12-26 06:39

答案D没错。原来我没弄懂range的意思，准备时间太短了惭愧啊。多谢了！

欢迎光临国际顶尖MBA申请交流平台--TOPWAY MBA (http://forum.topway.org/)