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# A store purchased x pounds of ground beef for p dollars per pound. If

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Math Expert
Joined: 02 Sep 2009
Posts: 43361
A store purchased x pounds of ground beef for p dollars per pound. If [#permalink]

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02 Jan 2018, 22:47
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A store purchased x pounds of ground beef for p dollars per pound. If y percent of the beef was discarded due to spoilage and the rest was sold for s dollars per pound, which of the following represents the gross profit on the sale of the beef?

A. $$(x - y)s - xp$$

B. $$(x - 100y)s - xp$$

C. $$\frac{1}{100}*(x - y)s - xp$$

D. $$(1 - \frac{y}{100})xs - xp$$

E. $$\frac{1}{100}*(x - y)(s - p)$$
[Reveal] Spoiler: OA

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Re: A store purchased x pounds of ground beef for p dollars per pound. If [#permalink]

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03 Jan 2018, 00:30
Cost Price = xp $Beef left after spoilage = x(1-y/100) pounds Selling price = x(1-y/100)s$

Profit = Selling price - Cost price
= x(1-y/100)s - xp

Ans D
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Re: A store purchased x pounds of ground beef for p dollars per pound. If   [#permalink] 03 Jan 2018, 00:30
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