A bag contains 4 red, 5 black and 6 blue balls. Find the probability that two balls drawn at random simultaneously from the bag are a red and a black ball.

A bag contains 5 white, 4 black and 6 red balls. A ball is drawn at random. The probability that the balls drawn is not white is:

A bag contain 4 red balls 5 black balls and 6 white balls. if one ball is drawn at random find the probability that the ball drawn is red

A bag contains 4 red and 4 black balls, another bag contains 2 red and 6 black balls. One of the two bags is selected at random and two balls are drawn at random without replacement from the bag and are found to be both red. Find the probability that the balls are drawn from the first bag.

A bag contains 4 red and 4 black balls,another bag contains 2 red and 6 black balls.One of the two bags is selected at random and two balls are drawn at random without replacement from the bag and are found to be both red.Find the probability that the balls are drawn from the first bag.

A bag contains 4 black balls and 6 red balls. One ball is drawn at random.The probability that it is red is

A bag contains 4 black balls and 6 red balls. One ball is drawn at random. The probability that it is red is

A bag contains 4 red, 6 black and 5 white balls, A ball is drawn at random from the bag. Find the probability that the ball drawn is: red or black

A bag contains 4 red, 6 black and 5 white balls, A ball is drawn at random from the bag. Find the probability that the ball drawn is: not black

A bag contain 4 red balls 5 black balls and 6 white balls. if one ball is drawn at random find the probability that the ball drawn is not black