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What is the volume of cubical box in cubic centimeters? I.One face of

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What is the volume of cubical box in cubic centimeters? I.One face of  [#permalink]

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New post 10 Feb 2017, 07:28
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82% (00:53) correct 18% (00:58) wrong based on 71 sessions

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Source: http://www.testpreppractice.net

What is the volume of cubical box in cubic centimeters?

I.One face of the box has area of 36 sq cms.
II.The longest diagonal of the box is 18 cms.

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Re: What is the volume of cubical box in cubic centimeters? I.One face of  [#permalink]

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New post 10 Feb 2017, 07:55
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SajjadAhmad wrote:
Source: http://www.testpreppractice.net

What is the volume of cubical box in cubic centimeters?

I.One face of the box has area of 36 sq cms.
II.The longest diagonal of the box is 18 cms.


1. area= a^2=36
thus a=6
volume = a^3 =6^3
suff..
2. please see attached fig below
given D=18
d^2=a^2+a^2
thus d in terms of a can be written
again in triangle having hypotenuse as D
we have a^2 + d^2= D^2
or 3a^2= 18^2
thus a can be calculated and hence the volume=a^3
suff

Ans D
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Director
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Re: What is the volume of cubical box in cubic centimeters? I.One face of  [#permalink]

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New post 10 Feb 2017, 08:04
SajjadAhmad wrote:
Source: http://www.testpreppractice.net

What is the volume of cubical box in cubic centimeters?

I.One face of the box has area of 36 sq cms.
II.The longest diagonal of the box is 18 cms.



it doesnt seems like GMAT type question
as in both case anwers must be same... :wink:
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Re: What is the volume of cubical box in cubic centimeters? I.One face of  [#permalink]

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New post 11 Jul 2017, 17:53
D.

1. Given the area of one face, you know the side length which is sufficient to find the volume. Sufficient

2. Given the diagonal of one face, you can determine the side length using the pythagorean theorem. Sufficient
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Re: What is the volume of cubical box in cubic centimeters? I.One face of   [#permalink] 11 Jul 2017, 17:53
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