求助一道GWD~

owen870930

Q28:

Last Sunday a certain store sold copies of Newspaper A for $1.00 each and copies of Newspaper B for $1.25 each, and the store sold no other newspapers that day.  If r percent of the store’s revenues from newspaper sales was from Newspaper A and if p percent of the newspapers that the store sold were copies of newspaper B, which of the following expresses r in terms of p?



A. 100p / (125 – p)

B. 150p / (250 – p)

C. 300p / (375 – p)

D. 400p / (500 – p)

E. 500p / (625 – p)


求思路求过程·~谢谢了

owen870930

pycao

兄弟啊，你这个题错了吧，害我做了两遍，考证了下If r percent of the store’s revenues from newspaper sales was from Newspaper A and if p percent of the newspapers that the store sold were copies of newspaper B。这句最后那个B应该也是A吧，这样的话就正常了，就列个式子做就好了

maximeason

不会。。坐等。。

owen870930

我也是做不出来啊·我从GWD上复制的原题，有人知道这道题是错了吗？

owen870930