An urn contains 5 white and 7 black second urn contains 7 white and 8ball.One ball is transfered from the 1st urm to the 2nd urn without noticing its colour. A ballat random from the 2nd urn. The probait is white is

An urn contains 5 white and 7 black second urn contains 7 white and 8ball.One ball is transfered from the 1 st urm to the 2 nd urn without noticing its colour.A ballat random from the 2 nd urn.The probait is white is

One urn contains 4 white and 2 black balls. Second urn contains 5 white and 4 black balls. Two balls are transferred from the first urn to the second urn. Then one ball is drawn from the second urn. Find the probability that it is white.

An urn contains 10 white and 3 black balls.Another urn contains 3 white and 5 black balls.Two balls are drawn from the first urn and put into the second urn and then a ball is drawn from the second urn and the probability that ball drawn from 2nd urn is white.

An urn contains 10 white and 3 black balls.Another urn contains 3 white and 5 black balls.Two balls are drawn from the first urn and put into the second urn and then a ball is drawn from the second urn.Find the probability that ball drawn from 2nd urn is white.

The first of two urns contains 3 white and 2 black balls and 2 red balls. One ball is taken at random from the first urn and is placed in the second urn. Then if one ball is taken at random from the second urn, find the probabilities that it is either red or white.

The first of two urns contains 3 white and 2 black balls and 2 red balls. One ball is taken at random from the first urn and is placed in the second urn. Then if one ball is taken at random from the second urn, find the probabilities that it is black.

A urn A contains 3 white and 5 black balls. Another urn B contains 6 white and 8 black balls. A ball is picked from A at random and then transferred to B. Then a ball is picked at random from B. The probability that it is a white ball is

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?

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 ?