Scoretop 6 - Question 28

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Scoretop 6 - Question 28

by akay » Thu Sep 27, 2007 2:31 am
I know this one's easy for some of you but just getting a bit confused...

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)
Source: — Problem Solving |

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by camitava » Thu Sep 27, 2007 4:43 am
Are u missing something here? At least the total no of copies ...
Correct me If I am wrong


Regards,

Amitava

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by josephcho77 » Thu Sep 27, 2007 5:25 am
I think the anwer is D

Let's say if both Newspaper A and Newspaper B are sold 1 copies.
Revenu = $1 for A
$1.25 for B

Therefore r = 44.44% and p=50%

plugging the number in D = 400(50) / (500 – 50)
=44.44%

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by akay » Thu Sep 27, 2007 6:43 am
tks all of you