A bag contains 4 white balls and 2 black balls. Another bag contains 3 white balls and 5 black balls. If one ball is drawn from each bag, find the probability that
both are white.

A bag contians 4 white balls and 2 black balls. Another bag contains 3 white balls and 5 black balls. If one ball is drawn from each bag, find the probability that both are black.

A bag contians 4 white balls and 2 black balls. Another bag contains 3 white balls and 5 black balls. If one ball is drawn from each bag, find the probability that one is white and one is black.

A bag X contains 4 white balls and 2 black balls, while another bag Y contains 3 white balls and 3 black balls. Two balls are drawn (without replacement) at random from one of the bags and were found to be one white and one black. Find the probability that the balls were drawn from bag Y.

A bag contains 3 red balls and 5 black balls. A ball is drawn at random from the bag. What is the probability that is the ball drawn is : red?

Bag A contains 6 red and 4 black balls . One ball is drawn at random from the bag. Find the probability that it was a red ball.

A bag A contains 3 white and 2 black balls and another bag B contains 2 white and 4 black balls. A bag and a ball out of it are picked at random. What is the probability that the ball is white?

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 3 black balls. Two balls are drawn at random. Find the probability that they are of the same colour.

A bag contains 3 red balls and 5 black balls. A ball is drawn at random from the bag. What is the probability that is the ball drawn is : not red?