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PFA. I went for B.. probRedblue.JPG

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PFA. I went for B.. probRedblue.JPG [#permalink]

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New post 21 Oct 2008, 18:30
This topic is locked. If you want to discuss this question please re-post it in the respective forum.

PFA.
I went for B..
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Re: GP2: Probabilty [#permalink]

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New post 21 Oct 2008, 18:52
I would say A

cant wait to see OA
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Re: GP2: Probabilty [#permalink]

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New post 21 Oct 2008, 21:22
spiridon wrote:
I would say A

cant wait to see OA

agree with A but what is your reasoning?
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Re: GP2: Probabilty [#permalink]

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New post 22 Oct 2008, 00:30
Question is essentially asking whether r > w.

From stmt1: r/(b+w) > w/(b+r)
adding 1 to each side,
(r+b+w)/(b+w) > (r+b+w)/(b+r)

or (b+w) < (b+r)
or, w < r and hence, sufficient.

Stmt2 does not help get this.

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Re: GP2: Probabilty [#permalink]

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New post 22 Oct 2008, 01:29
scthakur wrote:
Question is essentially asking whether r > w.

From stmt1: r/(b+w) > w/(b+r)
adding 1 to each side,
(r+b+w)/(b+w) > (r+b+w)/(b+r)

or (b+w) < (b+r)
or, w < r and hence, sufficient.

Stmt2 does not help get this.


Question is essentially asking whether r > w

how can we say this scthakur ?

the original question is r/(b+w) > w/(b+r)
how do we know that the denominator is not essential here ?

Thanks
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Re: GP2: Probabilty [#permalink]

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New post 22 Oct 2008, 02:00
amitdgr wrote:
Question is essentially asking whether r > w

how can we say this scthakur ?

the original question is r/(b+w) > w/(b+r)
how do we know that the denominator is not essential here ?

Thanks


The original question is r/(b+r+w) > w/(b+r+w) and since the denominator is the same, r > w.

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Re: GP2: Probabilty [#permalink]

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New post 22 Oct 2008, 02:09
scthakur wrote:
amitdgr wrote:
Question is essentially asking whether r > w

how can we say this scthakur ?

the original question is r/(b+w) > w/(b+r)
how do we know that the denominator is not essential here ?

Thanks


The original question is r/(b+r+w) > w/(b+r+w) and since the denominator is the same, r > w.


Ahh !! I guess I was sleeping when I read the explanation :(

I get it now scthakur :) thanks
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Re: GP2: Probabilty   [#permalink] 22 Oct 2008, 02:09
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PFA. I went for B.. probRedblue.JPG

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