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Silly question about inequalityy ... pls help

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by andy123 » Sun Mar 13, 2011 9:35 am
W + X < 0
W < -X or W > X,
asking, is W>Y?


Stupid Question but please help :

Is it OK to convert:

W < -X --- >> to ---- >> W > X,

I thought if we multiply by -1 , then we have to multiply both the sides of the equations and reverse the inequality ??

so in thi case: W < -X should not it be converted to -W > X ???
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by Night reader » Sun Mar 13, 2011 9:51 am
that's correct, we should rewrite w<-x as -w>x
andy123 wrote: Is it OK to convert:

W < -X --- >> to ---- >> W > X,

I thought if we multiply by -1 , then we have to multiply both the sides of the equations and reverse the inequality ??

so in thi case: W < -X should not it be converted to -W > X ???
Here we are given different conditions w<-x and w>x OR -w>x and w>x. We can further deduct that x<0 and w<|x|. BUT the question is asking about y? Precisely, the question is w>y? Please check with your book again as from this we cannot answer this question, and if this is DS question then the answer is E. If this is not DS question, we need the relationship between x and y ...
andy123 wrote:W + X < 0
W < -X or W > X,
asking, is W>Y?
My knowledge frontiers came to evolve the GMATPill's methods - the credited study means to boost the Verbal competence. I really like their videos, especially for RC, CR and SC. You do check their study methods at https://www.gmatpill.com
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by andy123 » Sun Mar 13, 2011 10:00 am
Thanks a lot.

Sorry the question was something else in GMAT Prep. I will procide the link once I am able to find.
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by andy123 » Sun Mar 13, 2011 10:05 am
Here is the question:


https://www.beatthegmat.com/11-if-w-x-0- ... 25004.html



Thanks.
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by andy123 » Sun Mar 13, 2011 10:07 am
the question is;


Can I convert W < -X

to -W > X ? - is this correct ?
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by Night reader » Sun Mar 13, 2011 10:58 am
I have posted solution to this DS question in the relevant forum today. I have also arrived at different answer - E.
andy123 wrote:the question is;


Can I convert W < -X

to -W > X ? - is this correct ?
My knowledge frontiers came to evolve the GMATPill's methods - the credited study means to boost the Verbal competence. I really like their videos, especially for RC, CR and SC. You do check their study methods at https://www.gmatpill.com
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by BarryLi » Sun Mar 13, 2011 12:03 pm
andy123 wrote:the question is;


Can I convert W < -X

to -W > X ? - is this correct ?
yes, you can
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