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# The figure above shows the dimensions of a rectangular box

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Manager
Joined: 05 Sep 2007
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The figure above shows the dimensions of a rectangular box [#permalink]  06 Mar 2008, 11:30
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The figure above shows the dimensions of a rectangular box that is to be completely wrapped with paper. If a single sheet of paper is to be used without patching, then the dimensions of the paper could be
(A) 17 in by 25 in
(B) 21 in by 24 in
(C) 24 in by 12 in
(D) 24 in by 14 in
(E) 26 in by 14 in
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Manager
Joined: 11 Apr 2007
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Re: PS:Rectangular [#permalink]  06 Mar 2008, 12:57
Is it B?
Here's my explanation: In order to determine the dimensions of the sheet of paper we have to find out the surface area of the rectanglular box, which is 432. Only B satisfies this condition.
Manager
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Posts: 144
Location: New York
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Re: PS:Rectangular [#permalink]  06 Mar 2008, 16:13
It's B. Thanks for explanation.
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Re: PS:Rectangular [#permalink]  06 Mar 2008, 19:35
moni77 wrote:
Is it B?
Here's my explanation: In order to determine the dimensions of the sheet of paper we have to find out the surface area of the rectanglular box, which is 432. Only B satisfies this condition.

Easier method without calculations is view pictorially.
See picture.

To wrap the box we need paper of size (2+8+2+8) by (2+20+2)

i,e 20 by 24
Re: PS:Rectangular   [#permalink] 06 Mar 2008, 19:35
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