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Does x = y?

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Retired Moderator
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Joined: 27 Oct 2017
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Does x = y?  [#permalink]

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New post 01 Nov 2018, 08:10
00:00
A
B
C
D
E

Difficulty:

  5% (low)

Question Stats:

87% (00:30) correct 13% (00:36) wrong based on 70 sessions

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Senior PS Moderator
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Status: It always seems impossible until it's done.
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Re: Does x = y?  [#permalink]

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New post 01 Nov 2018, 08:23
gmatbusters wrote:
Does x = y?
(1) | x |=| y |
(2) \(x^2 = y^2\)


St (1) For x = 2 and y = -2 also , | x | = | y | Hence it is not sufficient.

St (2) Similar to St (1) , St (2) holds true for x = 2 and y = -2 as well as x = 2 and y = 2... Hence not sufficient.

St (1) + St (2) combined gives no additional information.

Hence Option (E) is our choice.

Best,
Gladi
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Regards,
Gladi



“Do. Or do not. There is no try.” - Yoda (The Empire Strikes Back)
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Re: Does x = y?   [#permalink] 01 Nov 2018, 08:23
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