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Last Sunday a certain store sold copies of Newspaper A for

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Director
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Joined: 14 Sep 2005
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Last Sunday a certain store sold copies of Newspaper A for [#permalink] New post 26 Nov 2005, 06:42
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A
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D
E

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35. 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 revenue from newspaper sales was from Newspaper A, and if p percent of the newspapers that the store sold were copies of Newspaper A, then how can r be expressed in terms of p?

A. 100p/(125-p)
B. 150p/(250-p)
C. 300p/(375-p)
D. 400p/(500-p)
E. 500p/(625-p)
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Last edited by gamjatang on 30 Nov 2005, 23:16, edited 2 times in total.
Director
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Re: PS - (AG) Newspaper [#permalink] New post 26 Nov 2005, 08:19
gamjatang wrote:
35. 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 revenue from newspaper sales was from Newspaper A, and if p percent of the newspapers that the store sold were copies of Newspaper A, then how can r be expressed in terms of p?


Would really help if answer choices were given !!
VP
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 [#permalink] New post 28 Nov 2005, 06:02
D)...i picked numbers...

say 100...A is 60...B is 40

revenue: 110

p=60%
q=600/11~55%

try C)...(300*60)/(375-60)=18000/315>55

try D)...(400*60)/(500-60)=24000/460~55%. thats it !

imo its not the best but the fastest way...
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If your mind can conceive it and your heart can believe it, have faith that you can achieve it.

  [#permalink] 28 Nov 2005, 06:02
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