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# Math concepts

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Intern
Joined: 21 May 2006
Posts: 45
Math concepts [#permalink]

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17 Jun 2006, 08:51
This topic is locked. If you want to discuss this question please re-post it in the respective forum.

Sorry for another basic question

if | y - 2 | = 1 what are the possible values of y ?

also can someone explain how to use geometry for this kind of questions ?

Thanks for the help.
Manager
Joined: 09 May 2006
Posts: 99
Location: Bangalore, India

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17 Jun 2006, 09:07
Manager
Joined: 16 Apr 2006
Posts: 79
Re: Math concepts [#permalink]

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17 Jun 2006, 09:09
njvenkatesh wrote:
Sorry for another basic question

if | y - 2 | = 1 what are the possible values of y ?

also can someone explain how to use geometry for this kind of questions ?

Thanks for the help.

1.If y-2 >0, then y-2 =1,y=3
2.If y-2<0, then -(y-2)=1, -y+2=1 =>y=1
Intern
Joined: 21 May 2006
Posts: 45
GMAT Question [#permalink]

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10 Jul 2006, 21:40
Could you please help me explain this question with the above diagram ?
Attachments

GMAT_help3.JPG [ 4.17 KiB | Viewed 829 times ]

Senior Manager
Joined: 07 Jul 2005
Posts: 404
Location: Sunnyvale, CA

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11 Jul 2006, 11:40
(B)

I . tells u that x is an integer, can be 10 or 3.. which is insufficient.
II. tells u 0 < x < 1, and for any value |x-5| will be greater than 4 .. sufficiet
Director
Joined: 06 May 2006
Posts: 791

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11 Jul 2006, 12:08
#1. x is an integer... not sufficient
#2. x^2 < 1 => -1 < x < 1... for any value we have |x - 5| > 4. Sufficient.

Hence B.
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11 Jul 2006, 12:08
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# Math concepts

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