if one ball is drawn at random from each of three boxes containg 3whiteand 1 black,2 white and 2 black ,1 white and 3 black,then probability that 2 white and i black ball is drwn is a) 13/32 b) 1/4 c) 1/32

Asked by Maneesha m | 20th Dec, 2013, 03:11: PM

Expert Answer:

2 white balls and 1 black ball can be selected from three boxes as follows:
WWB    or    WBW     or   BWW
Box 1          Box 2          Box3
Thus, we have
 
Thus, option A.

Answered by Rashmi Khot | 20th Dec, 2013, 04:27: PM

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