There are 5 black and 6 red balls in a bag. If 3 balls are drawn at random, find the probability that these balls are black.

There are 5 black and 4 red balls ina bag. Two balls are drawn at random. Find the probability that both balls are red.

There are 5 white and 4 red balls in a bag. Two balls are drawn at random. Find the probability that both balls are white.

There are 4 white and 6 black balls in a bag. Two balls are drawn at random. Find the probability that both balls drawn are black.

There are 5 red, 4 black and 3 blue balls in bag. A ball is drawn at random. Find the probability that the ball drawn is: (i) black (ii) red or black.

There are 6 red and 4 black balls in a bag. A ball is drawn at random. Find the probability that the ball drawn is red.

There are 5 red and 3 black balls in a bag. A red ball is drawn at random. Find its probability.

A bag contains 7 white, 5 black and 4 red balls. If two balls are drawn at random, find the probability that: (i) both the balls are white (ii) one ball is black and the other red (iii) both the balls are of the same colour.

There a 9 red and 5 black balls in a bag. A black ball is drawn at random. Find its probability.

There are 7 red, 5 black and 3 white balls in a bag. A ball is drawn at random. Find the probability that ball drawn is: (i) white (ii) not white (iii) either red or white.

A bag contains 3 white, 5 black and 2 red balls all of the same shape and size. A ball is drawn at random, find the probability that the ball drawn is : (i) a black ball (ii) not a red ball.