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A carpenter constructed a rectangular sandbox with a

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Senior Manager
Joined: 10 Mar 2008
Posts: 375
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Kudos [?]: 102 [0], given: 0

A carpenter constructed a rectangular sandbox with a [#permalink]  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

Please show your workings. Thanks!
Current Student
Joined: 28 Dec 2004
Posts: 3387
Location: New York City
Schools: Wharton'11 HBS'12
Followers: 14

Kudos [?]: 186 [2] , given: 2

Re: PS: Geometry [#permalink]  28 Jun 2008, 17:49
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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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