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Source: — Data Sufficiency |
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by krisraam » Fri Jan 30, 2009 9:52 pm
IMO D

we can clearly say that 5-x > 0

==> x<5

1) -x|x| > 0 ==> x<0 when x<0 .. 5-x > 0 Sufficient

2. 5-x > 0 sufficient

raama
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by piyush_nitt » Fri Jan 30, 2009 11:29 pm
krisraam wrote:IMO D

we can clearly say that 5-x > 0

==> x<5

1) -x|x| > 0 ==> x<0 when x<0 .. 5-x > 0 Sufficient

2. 5-x > 0 sufficient

raama
Can you please elaborate bit more?

Thanks !
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by yalanand » Sat Jan 31, 2009 1:34 am
I dont see any reason why you need both the conditions ..?


Since we know (x-5)^2= (5-x)^2

This will be true for all the values of X be it negative / positive

For ex if X=1

we know (1-5)^2=(5-1)^2 which is true

Similary if x=-1

we have (-1-5)^2=(5+2)^2 which is also true..

So i would go with option (F) none of the conditions needed :)...since no F...my answer is (D)
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