涛涛4-17 大家给思路

freebird1984

Q17:

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?
答案是：D

A.    
%
B.     (k – m) %

C.     [100(k – m)] / (100 + k) %

D.    [100(k – m)] / (100 + m) %

E.     [100(k – m)] / (100 + k + m
) %

akatsuki09

http://forum.chasedream.com/GMAT_Math/thread-415733-1-1.html这个贴上有