Q. 14.0( 1 Vote )

Mark the correct alternative in each of the following:

If one ball is drawn at random from each of three boxes containing 3 white and 1 black, 2 white and 2 black, 1 white and 3 black balls, then the probability that 2 white and 1 black balls will be drawn is

A. 13/32

B. 1/4

C. 1/32

D. 3/16

Answer :

There are 3 ways of drawing 2 white balls and 1 black ball from the three boxes, i.e.,

WWB,WBW,BWW


For box 1,



For box 2,



For box 3,






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