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If absolute alue M+4 =2, what is the value of M? (1) M<0

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Intern
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Joined: 08 Nov 2008
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If absolute alue M+4 =2, what is the value of M? (1) M<0 [#permalink]

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New post 20 Nov 2008, 09:53
If absolute alue M+4 =2, what is the value of M?
(1) M<0 (2) M^2+8M+12=0
A. Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient
B. Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient
C. BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient.
D. EACH statement ALONE is sufficient
E. Statements (1) and (2) TOGETHER are NOT sufficient

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Intern
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Re: absolute value ---25 [#permalink]

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New post 20 Nov 2008, 10:55
D should be the ans..
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Joined: 15 Apr 2008
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Re: absolute value ---25 [#permalink]

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New post 20 Nov 2008, 13:25
my answer is E
both the statements are giving 2 values for m, -2 and -6
therefore there is no single value of m

what is the OA
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Re: absolute value ---25 [#permalink]

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New post 20 Nov 2008, 15:29
From
1) m+4=2

it gives value of m as -2 and -6 considering the 2 and -2 as the different absolute values.

2)m^2+8m+12=0 also gives 2 values -2 and -6, after solving the quadratic equation.

So my answer is E.

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

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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: absolute value ---25   [#permalink] 20 Nov 2008, 15:29
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If absolute alue M+4 =2, what is the value of M? (1) M<0

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