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Math concepts

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Intern
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Math concepts [#permalink] New post 17 Jun 2006, 07:51
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.
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 [#permalink] New post 17 Jun 2006, 08:07
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Re: Math concepts [#permalink] New post 17 Jun 2006, 08:09
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
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GMAT Question [#permalink] New post 10 Jul 2006, 20:40
Could you please help me explain this question with the above diagram ?
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 [#permalink] New post 11 Jul 2006, 10:40
(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
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 [#permalink] New post 11 Jul 2006, 11:08
#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.
  [#permalink] 11 Jul 2006, 11:08
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