Urn A contains 1 white, 2 black and 3 red balls, urn B contains 2 white, 1 black and 1 red ball, and urn C contains 4 white, 5 black and 3 red balls. One urn is chosen at random and two balls are drawn. These happen to be one white and one red. What is the probability that they come from urn A ?

The contents of urns I, II and III are as follows Urn I: I white, 2 black and 3 red balls Urn II: 2 white, 1 black and 1 red balls Urn III: 4 white, 5 black and 3 red balls. One urn is chosen at random and two balls are drawn. They happen to be white and red. What is the probability that they come from urn I, II or III?

The contents of urn, I, II, III are as follows Urn I: 1 White, 2 black and 3 red balls Urn II: 2 white, 1 black and 1 red balls. Urn III: 4 white, 5 black and 3 red balls One run is chosen at random and two balls are drawn. They happen to be white and red what is the probability that they come from Urns, I, II, III?

Urn A contains 2 white, 1 black and 3 red balls, urn B contains 3 white, 2 black and 4 red balls and urn C contains 4 white, 3 black and 2 red balls. One urn is chosen at random and 2 balls are drawn at random from the urn. If the chosen balls happen to be red and black, what is the probability that both balls come from urn B?

Urn A contains 2 white, 1 black and 3 red balls, urn B contains 3 white, 2 black and 4 red balls and urn C contains 4 white, 3 black and 2 red balls. One urn is chosen at random and 2 balls are drawn at random from the urn. If the chosen balls happen to be red and black, what is the probability that both balls come from urn B?

Three identical urns contain white and black balls. The first urn contains 2 white and 3 black balls, the second urn 3 white and 2 black balls and the third urn 1 black and 4 white balls. An urn is chosen at random and a ball is drawn from it. If the ball drawn is white, what is the probability that the first urn is chosen ?

Three identical urns contain red and black balls The fist urn contains 2 white and 3 black balls,the second urn 3 white and 2 black balls and the third urn 1black and 4 white balls.An urn is chosen at random and a ball is drawn from it.If the all drawn is white,what is the probability that the first um is chosen?

There are two urns A and B. Urn A contains 5 red, 4 blue, and 2 white balls, urn B contains 4 red, 3 blue, and 3 white balls. An urn is choosen at random and a ball is drawn. Probability that the ball drawn is red is

Suppose that an, urn B_(1) contains 2 white and.3 black balls and another urn B_(2) contains 3 white and 4 black balls. One urn is selected at random and a ball is drawn from it: If the ball drawn is found black, find the probability that the urn chosen was B_(1).

An urn contains 7 white, 5 black and 3 red balls. Two balls are drawn at random, Find the probability that : one ball is white.