1.

Box B_(1) contains 4 white and 6 black balls and box B_(2) contains 6 white and 4 black balls. Now one balanced coin is tossed. If two head comes up then 2 balls are drawn from box B_(1) other wise 2 white balls are drawn from Box B_(2). Then find probability of an event that selected both balls are of white colour.

Answer»

`(19)/(60)`
`(21)/(60)`
`(17)/(60)`
`(23)/(60)`

Answer :C


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