An urn contains 6 balls of which two are red and four are black. Two balls are drawn at random. Probability that they are of the different colours is

An urn contains 9 balls two of which are red, three blue and four black. Three balls are drawn at random. The probability that they are of same colour is

A bag contains 6 white and 4 black balls. Two ball are drawn at random. The probability that they are of the different colour is

A bag contains 3 red,4 white and 5 blue balls. If two balls are drawn at random. The probability that they are of different colours is……….

A bag contains 6 white and 4 black balls. Two balls are drawn at random. The probability that they are of the same colour is

An urn contains nine balls of which three are red four are blue and two are green three balls are drawn at random the probability that the three balls different colours is

A bag contains 8 red and 7 black balls . Two balls are drawn at random . Probability that both the balls are of the same color is

A bag contains 8 red and 7 black balls. Two balls are drawn at random. The probability that both the balls are of the same colour is :

A bag contains 8 red and 7 black balls. Two balls are drawn at random. The probability that both the balls are of the same colour is :

A bag contains 8 red and 7 black balls. Two balls are drawn at random. The probability that both the balls are of the same colour is :