一道PP题请教

飞行2010 · 发表于 2010-2-25 16:58:06

（20）A certain movie depicted product A in 21 scenes, product B in 7 scenes, product C in 4 scenes, and product D in 3 scenes. The four product manufacturers paid amounts proportional to the number of scenes in which their product was depicted in the movie.If each manufacturer paid x dollars per scene, how much did the manufacturer of product D pay for this advertising?

(1) The manufacturers of products A and B together paid a total of $560,000 for this advertising.

(2) The manufacturer of product B paid $60,000 more for this advertising than the manufacturer of product C paid.
D

广告费都是一样的吗？是根据A,B中一个算出来D就可以算出来吗？可是题目并没有告诉我广告费是一样的啊？这个好矛盾的，谢谢。

D

广告费都是一样的吗？是根据A,B中一个算出来D就可以算出来吗？可是题目并没有告诉我广告费是一样的啊？这个好矛盾的，谢谢。

kingapple25 · 发表于 2010-2-25 17:00:30

题目说了----If each manufacturer paid x dollars per scene。。。。

一道PP题请教

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