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PostPosted: Wed Jul 09, 2008 1:50 am    Post subject: Probability Reply with quote
How to solve this question? Any Shortcut?
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PostPosted: Wed Jul 09, 2008 7:45 am    Post subject: Re: Probability Reply with quote
This problem has been discussed several times...

Check this link, for example: http://www.beatthegmat.com/probability-data-suff-t12341.html
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PostPosted: Wed Jul 09, 2008 10:00 pm    Post subject: Reply with quote
Hi,

You need to know number of white balls, number of even nos and together both

then probability will be

pick a white ball or(+) pick an even or(+) both satisfying

No way it can be found from the stmts given. So, E.

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