A Box contains 5 white and 3 black ball. One ball is drawn and it is seen to be white. A second ball is drawn without returning the first ball. What is the probability that the second ball is also white?

A bag contains 8 white and 7 black balls and another bag contains 5 white and 4 black balls. A ball is drawn at random from the first bag and put it into second bag. Now if a ball is drawn at random from the second bag. Find the probability that the ball drawn is white.

Each of the two identical bags contain 5 white and 5 red balls. One ball is transferred at random without notice from the second bag to the first bag. Then one ball is drawn from the first bag. Find the probability that the ball drawn is a red ball.

A box contains 6 white balls and 4 black balls, A ball is drawn at random from the box. What is the probability that the ball is white.

A bag contains 5 balls. Two balls are drawn and are found to be white. What is the probability that all the balls are white?

Two boxes contain balls as under: Box 1: 3 White and 2 Red balls Box 2: 2 White and 4 Red balls One ball is drawn at random from Box 2 and is put into Box 1. Then a ball is drawn from Box 1 at random. What is the probability that the ball drawn from Box 1 is white?

An urn contains 10 red and 8 white balls. One ball is drawn at random. Find the probability that the ball drawn is white.

A bag contains 3 red balls, 5 black balls and 4 white balls. A ball is drawn at random from the bag. What is the probability that the ball drawn is white?

A bag contains 3 red balls, 5 black balls and 4 white balls. A ball is drawn at random from the bag. What is the probability that the ball drawn is red?

A bag contains 3 red balls and 5 black balls. A ball is drawn at random from the bag. What is the probability that the ball drawn is red?

A bag contains 3 red balls and 5 black balls. A ball is drawn at random from the bag. What is the probability that the ball drawn is not red?