A bag contains 4 red and 3 black balls. A second bag contains 2 red and 4 black balls. One bag is selected at random. From the selected bag; one ball is drawn. Find the probability that the ball drawn is red.

A bag contains 4 red and 3 black balls. A second bag contains 2 red and 4 black balls. One bag is selected at random. Form the selected bag, one all is drawn. Find the probability that the ball drawn is red.

There are two identical bags. Bag | contains 3 red and 4 black balls while bag || contains 5 red and 4 black balls. One ball is drawn at random from one of the bags. Find the probability that all the ball drawn are red

There are two identical bags. Bag I contains 3 red and 4 black balls while bag II contains 5 red and 4 black balls. One ball is drawn at random from one of the bags. If the balls drawn is red what is the probability that it was drawn from bag I?

A bag contains 4 red and 5 black balls, a second bag contain 3 red and 7 black balls. One ball is drawn at random from each bag, find the probability that the ball are of the same colour.

A bag contains 4 red and 5 black balls, a second bag contain 3 red and 7 black balls. One ball is drawn at random from each bag, find the probability that the ball are of the same colour.

A bag contains 4 red and 5 black balls, a second bag contain 3 red and 7 black balls. One ball is drawn at random from each bag, find the probability that the balls are of different colour.

A bag contains 4 red and 4 black balls. Another bag contains 2 red and 6 black balls. One of the bags is selected at random and a ball is drawn from the bag which is found to be red. Find the probability that the ball is drawn from the first bag.

A bag contains 8 red and 4_ green balls. One ball is selected at random. Find the probability that the ball drawn is red.

A bag contains 4 red and 4 black balls, another bag contains 2 red and 6 black balls. One of the two bags is selected at random and a ball drawn from the bag which is found to be red. Find the probability that the ball is drawn from the first bag.