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.

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 contains 3 red and 5 black balls and second bag contains 6 red and 4 black balls. A ball is drawn from each bag. Find the probability that one is red and the other is black.

A bag contains 3 red and 5 black balls and second bag contains 6 red and 4 black balls. A ball is drawn from each bag. Find the probability that one is red and the other is black.

A bag contains 3 red and 5 black balls and second bag contains 6 red and 4 black balls.A ball is drawn from each bag.Find the probability that one is red and the other is black.

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

a bag contains 7 red 5 white and 3 black balls. A ball is drawn at random from the bag find the probability that the drawn ball is red or white

A bag contains 5 red, 8 white and 7 black balls. A ball is drawn at random from the bag. Find the probability that the drawn ball is not black