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What is the average of x and |y| ?

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Intern
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Joined: 22 Dec 2009
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What is the average of x and |y| ? [#permalink] New post 22 Jun 2010, 01:44
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  35% (medium)

Question Stats:

76% (01:24) correct 24% (00:24) wrong based on 33 sessions
What is the average of x and |y| ?

(1) x + y = 20

(2) |x + y| = 20
[Reveal] Spoiler: OA
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Manager
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Joined: 03 May 2010
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Re: What is the average of x and |y| ? [#permalink] New post 22 Jun 2010, 01:54
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We need the value of (x + |y|) / 2

1. x + y = 20
IF x = 40 and y = -20 then x + |y| = 60
IF x = 10 and y = 10 then x + |y| = 20
INSUFFICIENT

2. |x + y| = 20
IF x = 10 and y = 10 then x + |y| = 20
IF x = -10 and y = -10 then x + |y| = 0
INSUFFICIENT

Both statements together:

The examples from statement 1 still hold true, and we still get multiple values for x + |y|. INSUFFICIENT

Pick E.
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Re: What is the average of x and |y| ? [#permalink] New post 28 Jun 2010, 06:46
Nice explanation guys.........
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Re: What is the average of x and |y| ? [#permalink] New post 06 Aug 2014, 19:07
Hello from the GMAT Club BumpBot!

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Re: What is the average of x and |y| ?   [#permalink] 06 Aug 2014, 19:07
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