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A rectangular box with the dimensions height=2 inches,

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Manager
Joined: 23 Mar 2008
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A rectangular box with the dimensions height=2 inches, [#permalink]  17 Aug 2008, 00:22
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A rectangular box with the dimensions height=2 inches, length=20 inches and width=8 inches 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
Intern
Joined: 21 Jul 2008
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Re: PS: rectangular box [#permalink]  17 Aug 2008, 08:50
This can easily be solved by calculating the total surface area of the box

Total surface area of the box = 2 * (2 * 20 + 20 * 8 + 2 * 8) = 432 sq inch

Out of all the given options, only (B) has an area > 432 sq inch.

So (B) for me.
Manager
Joined: 23 Mar 2008
Posts: 221
Followers: 2

Kudos [?]: 37 [0], given: 0

Re: PS: rectangular box [#permalink]  18 Aug 2008, 10:15
OA is B indeed, it is appeared to be really very simple
Re: PS: rectangular box   [#permalink] 18 Aug 2008, 10:15
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