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There are two bags, one of which contain...

There are two bags, one of which contains 3 black and 4 white balls while the other contains 4 black and 3 white balls. A die is thrown. If it shows up 1 or 3, a ball is taken from the `1^(st)` bag, but it shows up any other number, a ball is chosen from the `2^(nd)` bag. Find the probability of choosing a black ball.

A

`(7)/(15)`

B

`(8)/(15)`

C

`(10)/(21)`

D

`(11)/(21)`

Text Solution

Verified by Experts

The correct Answer is:
(d)
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