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# Gmat prep Probabilty

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Senior Manager
Joined: 02 Dec 2007
Posts: 432

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26 Sep 2008, 05:48
Attachment:

probability.JPG [ 51.15 KiB | Viewed 780 times ]

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Intern
Joined: 02 Sep 2008
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26 Sep 2008, 06:56

if i choose, x+y and x-y then it meets condition of the form in x^2 - (by)^2.

while total selection is 4C2 = 6.

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Re: Gmat prep Probabilty   [#permalink] 26 Sep 2008, 06:56
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# Gmat prep Probabilty

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