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A store purchased 20 coats that each cost an equal amount

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Senior Manager
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A store purchased 20 coats that each cost an equal amount [#permalink] New post 20 Oct 2006, 01:09
A store purchased 20 coats that each cost an equal amount and then sold each of the 20 coats at an equal price. What was the store's gross profit on the 20 coats?

(1) If the selling price per coat had been twice as much, the store's gross profit on the 20 coats would have been $2,400

(2) If the selling price per coat had been $2 more, the store's gross proft on the 20 coats would have been $440

OA is B.

But my answer is D. Isn't (1) also sufficient?

GP = gross profit = price*quantity

GP = 20p

Given (1), 20(2p) = $2,400 --> then you can solve for p. Am i understanding the problem incorrectly?
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 [#permalink] New post 20 Oct 2006, 03:36
I think it's (B) :)

The profit gross = (The Sell Price per unit - The Purschase Price per unit )*Quantity of unit
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 [#permalink] New post 20 Oct 2006, 10:27
The question is asking for

20(Y-X)


1 says : 40Y - 20X = 2400.........INSUFF
2 says : 20Y - 20X = 400...........SUFF

Hence B
  [#permalink] 20 Oct 2006, 10:27
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A store purchased 20 coats that each cost an equal amount

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