ChaseDream
搜索
返回列表 发新帖
查看: 1630|回复: 3

[求助]涛涛GWD5

[复制链接]
发表于 2006-8-5 10:32:00 | 显示全部楼层

[求助]涛涛GWD5

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 A, 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)

答案是D

请指教

发表于 2006-8-5 14:28:00 | 显示全部楼层

http://forum.chasedream.com/dispbbs.asp?BoardID=22&ID=86812

Please include the question number in your subject line (e.g. TT GWD-xx-yy)

发表于 2006-8-5 15:28:00 | 显示全部楼层
这道题也是本月jj,你可以看一下jj的讨论帖
 楼主| 发表于 2006-8-5 15:44:00 | 显示全部楼层

吼吼,感谢。

您需要登录后才可以回帖 登录 | 立即注册

Mark一下! 看一下! 顶楼主! 感谢分享! 快速回复:

手机版|ChaseDream|GMT+8, 2024-3-28 18:00
京公网安备11010202008513号 京ICP证101109号 京ICP备12012021号

ChaseDream 论坛

© 2003-2023 ChaseDream.com. All Rights Reserved.

返回顶部