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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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Is x^2 greater than x? 1) x^2 is greater than 1 2) x is [#permalink]

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18 Oct 2006, 13:24
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Is x^2 greater than x?

1) x^2 is greater than 1
2) x is greatera than -1
SVP
Joined: 05 Jul 2006
Posts: 1747
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18 Oct 2006, 13:30
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

Manager
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18 Oct 2006, 14:58
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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18 Oct 2006, 15:32
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
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18 Oct 2006, 16:00
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
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18 Oct 2006, 16:01
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

Re: DS: Integers   [#permalink] 18 Oct 2006, 16:01
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