A box contains 4 pink and 3 purple balls. Mark takes out a ball, puts it back, and then takes out another ball. What is the probability that both balls were pink?

There are two identical boxes. Box I contains 5 red and 4 black balls, while box II contains 3 red and 3 black balls. A person choose a box at random and takes out a ball Find the probability that the ball drawn is red.

A bag A contains 3 white and 2 black balls and another bag B contains 2 white and 4 black balls. A bag and a ball out of it are picked at random. What is the probability that the ball is white?

A bag A contains 3 white and 2 black balls and another bag B contains 2 white and 4 black balls. A bag and a ball out of it are picked at random. What is the probability that the ball is white?

A bag A contains 3 white and 2 black balls and another bag B contains 2 white and 4 black balls. A bag and a ball out of it are picked at random. What is the probability that the ball is white?

There are two identical boxes. Box I contains 5 red and 4 black balls, while Box II contains 3 red and 3 black balls. A person chosen a box at random and takes out a ball a. Find the probability that the ball drawn is red. b. If the ball drawn is black, what is the probability that it is drawn from Box II.

A box contains 5 red balls, 8 green balls and 10 pink balls. A ball is drawn at random from the box. What is the probability that the ball drawn is either red or green?

There are two identical boxes. Box |contains 5 red and 4 black balls, while box || contains 3 red and 3 black balls. A person choose a box at random and takes out a ball If the ball drawn is black, what is the probability that it is drawn from box ||

A bag contains a red ball, a blue ball and a yellow ball, all the balls being of the same size. Nayan takes out a ball from the bag. What is the probability that he takes out : (i) yellow ball (ii) red ball (iii) blue ball?