A carpenter constructed a rectangular sandbox with a : PS Archive
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# A carpenter constructed a rectangular sandbox with a

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Joined: 10 Mar 2008
Posts: 371
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A carpenter constructed a rectangular sandbox with a [#permalink]

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28 Jun 2008, 17:25
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A carpenter constructed a rectangular sandbox with a capacity of 10 cubic feet. If the carpenter were to make a similar sandbox twice as long, twice as wide, and twice as high as the first sandbox, what would be the capacity, in cubic feet, of the sandbox?

a. 20
b. 40
c. 60
d. 80
e. 100

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Joined: 28 Dec 2004
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Location: New York City
Schools: Wharton'11 HBS'12
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Kudos [?]: 282 [2] , given: 2

Re: PS: Geometry [#permalink]

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28 Jun 2008, 17:49
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KUDOS
let the first box be a*b*c=10...

to make life easy let c=1...ab=10..ok so a=5, b=2. c=

now a=10, b=4, c=2=80

D
Re: PS: Geometry   [#permalink] 28 Jun 2008, 17:49
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# A carpenter constructed a rectangular sandbox with a

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