Agree with puneet completely. After first blue pen, only possible outcomes are blue or black and hence 1/2.
On Sat, Aug 6, 2011 at 12:28 AM, Puneet Goyal <puneetgoya...@gmail.com>wrote: > > @shiv : you are considering the case when you need to know the probability > of both pens being blue, but in the question you already know that 1st one > is blue so you dont need to care about it, and also the 3rd packet getting > eliminated coz of it increases the probability to 1/2 > > -- > You received this message because you are subscribed to the Google Groups > "Algorithm Geeks" group. > To post to this group, send email to algogeeks@googlegroups.com. > To unsubscribe from this group, send email to > algogeeks+unsubscr...@googlegroups.com. > For more options, visit this group at > http://groups.google.com/group/algogeeks?hl=en. > -- Regards Kunal Yadav (http://algoritmus.in/) -- You received this message because you are subscribed to the Google Groups "Algorithm Geeks" group. To post to this group, send email to algogeeks@googlegroups.com. To unsubscribe from this group, send email to algogeeks+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/algogeeks?hl=en.
