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Is x greater than 1?

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by sanju09 » Tue Aug 28, 2012 1:40 am
Is x greater than 1?

(1) 1/x > -1.
(2) 1/x^5 > 1/x^3.

[spoiler]OA B[/spoiler]

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by neelgandham » Tue Aug 28, 2012 2:43 am
Is x greater than 1?
(1) 1/x > -1.

The above condition is true only if x<-1 and x>0. So, we can't tell, for sure, that x is greater than 1.
(2) 1/x^5 > 1/x^3.
The above condition is true only if x<-1 and 0<x<1. So, we can tell, for sure, that x is NOT greater than 1.

So, statement II is sufficient to answer the question. IMO B
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