If three balls drawn from a bag contains are 4 red, 3 black and 5 white balls. The probability of drawing 2 balls of the same colour and one is of different colour is

If two balls are drawn from a bag containing 3 white,4 black and 5 red balls,then the probability that the drawn balls are of different colours is

If two balls are drawn from a bag containing 3 white, 4 black and 5 red balls then the probability that the drawn balls are of different colours is

If two balls are drawn from a bag containing three red balls and four blue balls, find the probability that (a) They are of the same colour (b) They are of different colours

A bag contains 5 red balls , 3 black balls and 4 white balls . There balls are drawn at random. The propability that they are not of 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 :

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

A bag contains 2 red, 3 black , 4 white balls. 2 balls are drawn at random . The probability that they are different colours is