Probability-very tough!!

A bag contains n white balls & n red balls.Pairs of balls are
drawn without replacement until the bag is empty.Find the
probability that each pair consists of one white ball & one red ball.

9 Answers

62
Lokesh Verma ·

First reaction!

2/ 2nCn

It is 2n/2nCn

If this is, then i will try to explain..

If it is not then i will rethink!

9
Celestine preetham ·

yes nishant sir even im gettin same thing

62
Lokesh Verma ·

good we have a similar though process :)

9
Celestine preetham ·

all right thoughts lead to the same right ans ;)

9
Celestine preetham ·

no sir i oversaw ur post
actually i got a diff one 2^n/ 2nCn

9
Celestine preetham ·

i hope this is not one of those bertand or sibling paradoxes!

62
Lokesh Verma ·

hm... thoughts have changed... so have answers ;)

nd yeah u are right.. even i made the same typo :D

It is 2n/2nCn

9
Celestine preetham ·

good that we make similar errors also ;)

62
Lokesh Verma ·

is that good :D

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