国际顶尖MBA申请交流平台--TOPWAY MBA

标题: 帮忙解释一道GWD的数学题 [打印本页]

作者: shuangyuym 时间: 2009-8-4 07:21 标题: 帮忙解释一道GWD的数学题

谁能帮忙给我解释解释这道题目？怎么就不明白它什么意思呢。。。呜呜呜

Last year the price per share of Stock X increased by k percent and the earnings per share of Stock X increased by m percent, where k is greater than m. By what percent did the ratio of price per share to earnings per share increase, in terms of k and m?

A. k/m%

B. (k – m) %

C. [100(k – m)] / (100 + k) %

D. [100(k – m)] / (100 + m) %

E. [100(k – m)] / (100 + k + m) %

谢谢啦

作者: 194cm 时间: 2009-8-4 10:37

怎么感觉没有答案呢？

设原来的每股价格为P，每股收益为N，则原来的比值为P/N

增加之后的每股价格与每股收益为P（1+k%）和N(1+m%)

则{P（1+k%）/N(1+m%)-P/N}/P/N

作者: lanshichao90 时间: 2009-8-6 06:40

P=X*(100+K)%
E=X*(100+M)%
R=(P/E-1)*100%=[100(K-M)]/(100+M)%

作者: shuangyuym 时间: 2009-8-9 20:10

thanks a lot!!

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