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A fruit-salad mixture consists of apples, peaches, and grape

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A fruit-salad mixture consists of apples, peaches, and grape [#permalink] New post 20 Dec 2012, 07:17
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A fruit-salad mixture consists of apples, peaches, and grapes in the ratio 6:5:2, respectively, by weight. If 39 pounds of the mixture is prepared, the mixture includes how many more pounds of apples than grapes?

(A) 15
(B) 12
(C) 9
(D) 6
(E) 4
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Re: A fruit-salad mixture consists of apples, peaches, and grape [#permalink] New post 20 Dec 2012, 07:20
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Walkabout wrote:
A fruit-salad mixture consists of apples, peaches, and grapes in the ratio 6:5:2, respectively, by weight. If 39 pounds of the mixture is prepared, the mixture includes how many more pounds of apples than grapes?

(A) 15
(B) 12
(C) 9
(D) 6
(E) 4


Given that A:P:G=6x:5x:2x and 6x+5x+2x=13x=39, from which it follows that x=3.

Therefore, A-G=6x-2x=4x=12.

Answer: B.
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Re: A fruit-salad mixture consists of apples, peaches, and grape   [#permalink] 20 Dec 2012, 07:20
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