A bag contains 9 discs of which 4 are red, 3 are blue and 2 are yellow. A disc is drawn at random from the bag. Calculate the probability that it will be red.

A bag contains 9 discs of which 4 are red, 3 are blue and 2 are yellow. A disc is drawn at random from the bag. Calculate the probability that it will be Not yellow.

A bag contains 9 balls of which 4 are red,3 are white,and 2 are green. If a ball is drawn at random,then, Calculate the probability that it is not white.

A bag contains 9 balls of which 4 are red,3 are white,and 2 are green. If a ball is drawn at random,then. Calculate the probability that it is either white or green.

A bag contains 9 discs of which 4 are red, 3 are blue and 2 are yellow. The discs are similar in shape and size. A disc is drawn at random from the bag. Calculate the probability that it will be (i) red, (ii) yellow, (iii) blue, (iv) not blue, (v) either red or blue.

A bag contains 9 balls of which 4 are red, 3 are blue and 2 are yellow. The balls are similar in shape and size. A ball is drawn at random from the bag. Calculate the probability that the ball drawn will be either red or yellow.

A bag contains 9 balls of which 4 are red, 3 are blue and 2 are yellow. the balls are similar in shape and size. A ball is drawn at random from the bag. Calculate the probability that the ball drawn will be red.

A bag contains 9 balls of which 4 are red, 3 are blue and 2 are yellow. the balls are similar in shape and size. A ball is drawn at random from the bag. Calculate the probability that the ball drawn will be not yellow .

One card is drawn at random from a pack of 52 cards.Find the probability that the card drawn is a red ace.

A bag 'X'contains 2 white and 3 red balls and a bag Y contains 4 white and 5 red balls.One ball is drawn at random from one of the bags and is found to be red.Find the probability that it was drawn from bag Y.