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# Quant review econd edition Q#130

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Intern
Affiliations: Xado Technology Inc., Shomal University
Joined: 22 May 2014
Posts: 35
Location: Iran (Islamic Republic of)
Concentration: Marketing, Strategy
Schools: HEC Montreal '20
GPA: 3
WE: Marketing (Consumer Products)
Quant review econd edition Q#130  [#permalink]

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30 Aug 2017, 06:39
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Dear firends:
I have a problem with GMAC answer to the question number 130 of Quantitative review second edition. I know that "statement 1" is not sufficient but why "statement 2" is not sufficient ?

the question is as follows:

What is the volume of a certain rectangular solid?

(1) Two adjacent faces of the solid have areas 15 and 24, respectively.
(2) Each of two opposite faces of the solid has area 40.

it is said that each of two opposite faces has area of 40 it means the solid is a cube (cube is also a rectangular solid) and length of each edge is 40^(1/2).

IMO if it was said thata pair of two opposite faces of the solid has area of 40 then GMAC answer was correct.

--== Message from the GMAT Club Team ==--

THERE IS LIKELY A BETTER DISCUSSION OF THIS EXACT QUESTION.
This discussion does not meet community quality standards. It has been retired.

If you would like to discuss this question please re-post it in the respective forum. Thank you!

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Math Expert
Joined: 02 Sep 2009
Posts: 55271
Re: Quant review econd edition Q#130  [#permalink]

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30 Aug 2017, 06:42
parham wrote:
Dear firends:
I have a problem with GMAC answer to the question number 130 of Quantitative review second edition. I know that "statement 1" is not sufficient but why "statement 2" is not sufficient ?

the question is as follows:

What is the volume of a certain rectangular solid?

(1) Two adjacent faces of the solid have areas 15 and 24, respectively.
(2) Each of two opposite faces of the solid has area 40.

it is said that each of two opposite faces has area of 40 it means the solid is a cube (cube is also a rectangular solid) and length of each edge is 40^(1/2).

IMO if it was said thata pair of two opposite faces of the solid has area of 40 then GMAC answer was correct.

This question is discussed here: what-is-the-volume-of-a-certain-rectangular-solid-90748.html

--== Message from the GMAT Club Team ==--

THERE IS LIKELY A BETTER DISCUSSION OF THIS EXACT QUESTION.
This discussion does not meet community quality standards. It has been retired.

If you would like to discuss this question please re-post it in the respective forum. Thank you!

To review the GMAT Club's Forums Posting Guidelines, please follow these links: Quantitative | Verbal Please note - we may remove posts that do not follow our posting guidelines. Thank you.

_________________
Re: Quant review econd edition Q#130   [#permalink] 30 Aug 2017, 06:42
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# Quant review econd edition Q#130

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