一道GWD的提 我这里是GWD3-18但是和这里的对不上啊。。。。求助

kathyseven

Q18:

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) %

An：D

这道题怎么也算不出来 没看明白什么意思 哪位好心人给我讲讲吗？？ 价格增加不就是挣得多了吗？？

wentaow2008

   同问,这题perple me 很久了~