An urn contains 6 white and 4 black balls. A fair die is rolled and that number of balls we chosen from the urn. Find the probability that the balls selected are 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 .

BOX A contains 6 white balls and 4 red balls.BOX B contains 5 white balls and 5 red balls.One of the boxes is chosen at random and two balls are drawn from it . Find the probability that both balls are red balls .

An urn contains 8 white balls and 6 black balls. Two balls are drawn from the urn one after another without replacement. What is the probability that both the drawn balls are white?

One bag contains 5 white and 3 black balls, Another bag contains 4 white and 6 black balls. If one ball is drawn from each bag, find the probability that (i) both are white (ii) both are black (iii) one white and one black.

One bag contains 5 white and 3 black balls.Another bag contains 4 white and 6 black balls, If one ball is drawn from each bag, find the probability that (i)both are white (ii)both are black(iii)one white and one black.

A bag contains 3 white, 3 black and 2 red balls. One by one, three balls are drawn without replacing them. Find the probability that the third ball is red.