Find the chance of drawing 2 white balls in succession from a bag containing 5 red and 7 white balls, the ball first drawn not being replaced.

The probability of drawing 2 red balls in succession from a bag containing 4 red balls and 5 black balls when the ball that is drawn first is not replaced is

The probability of drawing 4 white and 2 black balls in two drawings in succession from a bag containing 1 red,4 black and 6 white balls, if the drawing is without replacement

Given two bags A and B as follows : Bag A contains 3 red and 2 white balls and bag B contains 2 red and 5 white balls. A bag is selected at random, a ball is drawn and put into the other bag, then a ball is drawn from the second bag. The probability that both balls drawn are of the same colour is

Given two bags A and B as follows : Bag A contains 3 red and 2 white balls and bag B contains 2 red and 5 white balls. A bag is selected at random, a ball is drawn and put into the other bag, then a ball is drawn from the second bag. The probability that both balls drawn are of the same colour is

There are 3 bags,each containing 5 white balls and 3 black balls.Also there are 2 bags, each containing 2 white balls and 4 black balls.A white ball is drawn at random.Find the probability that this white ball is from a bag of the first group.

There are 5 red and 7 white balls in one bag and 3 red and 8 white balls in second bg. If a ball is drawn at random from one the bags, find the probability that it is red.

A bag contains 2 red and 3 White balls and another bag contains 1red and 2 white balls. If a bag choosen at random and a ball is drawn fro ag is from it,what is the probability that the ball is white?

A bag contains 2 red and 3 white balls and another bag contains 1 red and 2 white balls. If a bag is chosen at random and a ball is drawn from it, what is the probability that the ball is white ?

A bag contains 20 balls out of which x balls are white.If one ball is drawn at random,the probability drawing a white ball is y.Now place this ball and 10 more white balls in the bag.Now if a ball is drawn from the bag,the probability of drawing the white ball is 2y. Find x.