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Is x^2 greater than x? 1) x^2 is greater than 1 2) x is

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Senior Manager
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Joined: 22 Sep 2005
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Is x^2 greater than x? 1) x^2 is greater than 1 2) x is [#permalink] New post 18 Oct 2006, 12:24
00:00
A
B
C
D
E

Difficulty:

(N/A)

Question Stats:

0% (00:00) correct 100% (00:00) wrong based on 0 sessions
Is x^2 greater than x?

1) x^2 is greater than 1
2) x is greatera than -1
SVP
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Joined: 05 Jul 2006
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 [#permalink] New post 18 Oct 2006, 12:30
Is x^2 greater than x?

1) x^2 is greater than 1
2) x is greatera than -1

from one

x^2 > x if x is a positive or negative intiger , composite fraction or a -ve fraction else not

from one

suff
from two

it could be zero or -1/2 or 1 .....insuff

my answer is A
Manager
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 [#permalink] New post 18 Oct 2006, 13:58
A is correct

The only way x^2 is not greater than 1 is if it is a fraction, so it is greater than 1 or negative, so it is sufficient

B is clearly not sufficient
Senior Manager
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 [#permalink] New post 18 Oct 2006, 14:32
Is x^2 greater than x?

1) x^2 is greater than 1
2) x is greatera than -1

i) x^2 > 1, x < -1 or x > 1, SUFF
ii) x could be > 1 or 0<x<1 or -1<x<0, INS

A
Director
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Re: DS: Integers [#permalink] New post 18 Oct 2006, 15:00
Is x^2 greater than x?

Should be C.

Statement 1:
x<-1 or x>1. INSUFF

Statement 2:
x>-1 INSUFF

Together, x>1 for both to be true. SUFF
Director
Director
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Joined: 23 Jun 2005
Posts: 847
GMAT 1: 740 Q48 V42
Followers: 5

Kudos [?]: 26 [0], given: 1

Re: DS: Integers [#permalink] New post 18 Oct 2006, 15:01
anandsebastin wrote:
Is x^2 greater than x?

Should be C.

Statement 1:
x<-1 or x>1. INSUFF

Statement 2:
x>-1 INSUFF

Together, x>1 for both to be true. SUFF

:beat Read the question!!! :beat
Re: DS: Integers   [#permalink] 18 Oct 2006, 15:01
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