1.

Three boxes B_(1), B_(2), B_(3) contain with different colours as shown below. {:(,"White","black","red"),(B_(1),2,1,2),(B_(2),3,2,4),(B_(3),4,3,2):} A die is thrown. B_(1) is chosen if either 1 or 2 turns up. B_(2) is chosen if 3 or 4 turns up and B_(3) is chosen if 5 or 6 turns up. Having chosen a box in this way, a ball is chosen at random from this box. If the ball found to be red, find the probability that it is drawn from box B_(2).

Answer»


ANSWER :`(5)/(12)`


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