profit and loss

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profit and loss

by Ankitaverma » Thu Dec 12, 2013 1:17 pm
From the sale of sleeping bags, a retailer made a gross profit of 12 percent of the wholesale cost. If each sleeping bag was sold for $28, what was the wholesale cost per bag?
(A) $3.00
(B) $3.36
(C) $24.64
(D) $25.00
(E) $31.36

Q/A-D

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by GMATGuruNY » Thu Dec 12, 2013 1:49 pm
Ankitaverma wrote:From the sale of sleeping bags, a retailer made a gross profit of 12 percent of the wholesale cost. If each sleeping bag was sold for $28, what was the wholesale cost per bag?
(A) $3.00
(B) $3.36
(C) $24.64
(D) $25.00
(E) $31.36

Q/A-D
We can plug in the answers, which represent the wholesale price.
When the correct wholesale price is increased by 12%, a selling price of $28 must be yielded.
Since 12% = 12/100 = 3/25, the correct answer choice must be a multiple of 25; otherwise, increasing the answer choice by 3/25 will not yield an integer value of 28.
Only D -- $25 -- is a multiple of 25.

The correct answer is D.

Answer choice D:
25 + (3/25)(25) = 25+3 = 28.
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