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During a sale, a clothing store sold each shirt at a price

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Director
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During a sale, a clothing store sold each shirt at a price [#permalink] New post 19 May 2008, 14:01
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During a sale, a clothing store sold each shirt at a price of $15 and each sweater at a price of $25. Did the store sell more sweaters than shirts during the sale?

(1) The average (aritmetic mean) of the prices of all the shirts and sweaters that the store sold during the sale was $21.

(2) The total of the prices of all the shirts and sweaters that the store sold during the sale was $420.
Director
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Re: GMATPrep Average [#permalink] New post 19 May 2008, 14:31
A


Statement 1:

15*(shirts) + 25* (sweaters) = 21 (shirts + sweaters)

4*(sweaters) = 6 * (shirts)

sweaters/shirts = 6/4

6 sweaters for every 4 shirts

statement 2: you can have 26 shirts and no sweater OR you can have 8 shirts and 12 sweaters
Re: GMATPrep Average   [#permalink] 19 May 2008, 14:31
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During a sale, a clothing store sold each shirt at a price

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