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# What is the average of x and |y| ?

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Intern
Joined: 22 Dec 2009
Posts: 41
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Kudos [?]: 9 [0], given: 13

What is the average of x and |y| ? [#permalink]  22 Jun 2010, 01:44
00:00

Difficulty:

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
Manager
Joined: 03 May 2010
Posts: 89
WE 1: 2 yrs - Oilfield Service
Followers: 11

Kudos [?]: 64 [1] , given: 7

Re: What is the average of x and |y| ? [#permalink]  22 Jun 2010, 01:54
1
KUDOS
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.
Senior Manager
Joined: 25 Feb 2010
Posts: 459
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Kudos [?]: 34 [0], given: 5

Re: What is the average of x and |y| ? [#permalink]  28 Jun 2010, 06:46
Nice explanation guys.........
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Joined: 09 Sep 2013
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Kudos [?]: 35 [0], given: 0

Re: What is the average of x and |y| ? [#permalink]  06 Aug 2014, 19:07
Hello from the GMAT Club BumpBot!

Thanks to another GMAT Club member, I have just discovered this valuable topic, yet it had no discussion for over a year. I am now bumping it up - doing my job. I think you may find it valuable (esp those replies with Kudos).

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