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There are three boxes containing respect...

There are three boxes containing respectively 1 white 2 red and 3 black balls, 2 wnite, 3 red and 1 black ball, 3 white, 1 red and 2 black balls. A box is chosen and from it two balls are drawn at random. They happen to be one red and one white. Fiild the probabilities that these come fronm (i) The first box (ii) The second box and (iii) The third box

A

`3/11`

B

`2/11`

C

`6/11`

D

`7/19`

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The correct Answer is:
B
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