There are 2 bag, one of which contains 3 black and 4 white balls, while the other contains 4 black and 3 white balls. A die is cast. If the face 1 or 3 turns up a ball is taken out from the first bag and if any other face turns up, a ball is taken from the second bag. The probability of choosing a black ball, is

There are two bags, on e of which contain s 3 black and 4 white, balls, while the other contains 4 black and 3 whit balls. A fair die is cast, if the face 1 or 3 turns up, a ball is taken from the first bag, and if any other face turns up a ball is chosen from the second bag. Find the probability of choosing a black ball.

Bag I contains 3 black and 2 white balls, Bag II contains 2 black and 4 white balls. A bag and then a ball is selected at random. Determine the probability of selecting a black ball.

A bag A contains 5 white and 6 black balls. Another bag B contains 4 white ad 3 black balls. A ball is transferred from the bag A to the bag B and then a balls is taken out of the second bag. Find the probability of this ball being black.

A bag contains 4 white and 5 black balls. Another bag contains 9 white and 7 black balls. A ball is transferred from the first bag to the second and then a ball is drawn at random from the second bag. Find the probability that the ball drawn is white.

A bag contains 10 white, 6 black and 4 red balls. Find the probability of getting : a black ball

A bag contains 10 white, 6 black and 4 red balls. Find the probability of getting : a white ball

Bag I contains 3 red and 5 white balls and bag 11 contains 4 red and 6 white balls. One of the bags is selected at random and a ball is drawn from it. The ball is found to be red. Find the probability that ball is drawn from bag 11

A bag A contains 6 white and 7 black balls while the other bag B contains 4 white and 5 black balls. A ball is transferred from the bag A to the bag B. Then a ball is drawn from the bag B. Find the probability that the ball drawn is white.