Box - `I` contains 6 red and 3 white balls while box - `II` contains 4 red and 3 white balls. A fair dice is thrown. If it turns up a multiple of 3. a ball is drawn from box - `I` else a ball is drawn from box `II`. Find the probability that the ball drawn is white.

Box -I contains 5 red and 2 blue balls while box - II contains 2 red and 6 blue balls.A fair coin is tossed.If it turns up head,a ball is drawn from box-l,else a ball is drawn from box-I.Find the probability of each of the following ( i) A red ball is drawn (ii) Ball drawn is from box-I if it is blue

Box A contains 5 red, 3 white and 8 blue balls while box B contains 3 red and 5 white balls. A fair dice is tossed. If 2 or 4 appears, a ball is chosen from B, otherwise a ball is chosen from A. Then the probability that the chosen ball is red.

A box contains 7 red balls, 8 green balls and 5 white balls. A ball is drawn at random from the box. Find the probability that the ball is white.

A box contains 7 red balls, 8 green balls and 5 white balls. A ball is drawn at random from the box. Find the probability that the ball is white.

There are two identical boxes. Box I contains 2 red and 3 white balls, while box II contains1 red and 4 white balls. A person chooses a box at random and takes out a ball. i Find the probability that the ball drawn is red. ii. If the ball drawn is white, what is the probability that it is drawn from box II?

A box contains 3 blue, 2 white and 4 red balls. If A ball is drawn from the box what is the probability that the ball is not white.

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 box contains 7 red balls, 8 green balls and 5 white balls. A ball is drawn at random from the box. Find the probability that the ball is neither red nor white.

A box contains 7 red balls and 6 blue ball. A ball is drawn at random from the box .The probability that this drawn is a blue ball.

A box contains 3 red and 7 white balls. One ball is drawn at random and in it placed a ball of the other colour is placed in the box. Now if one ball is drawn at random from the box then the probability that it is a red ball is