Five men in a company of 20 are graduates. If 3 men are picked out of 20 at random, what is the probabilty that they are all graduates? What is the probability of at least one graduate?

A bag contains 3 red, 3 white and 3 green balls. One ball is taken out of the bag at random. What is the probability that the ball picked up is red.

A bag contains 3 red, 3 white and 3 green balls. One ball is taken out of the bag at random. What is the probability that the ball picked up is not red.

A bag contains 3 red, 3 white and 3 green balls. One ball is taken out of the bag at random. What is the probability that the ball picked up is either red or white.

A box contains 5 red, 8 blue and 3 green pens. Rujuta wants to pick a pen at random. What is the probability that the pen is blue?

A box contains 12 balls, out of which x are black. If one ball is drawn at random, what is the probability that it will be a black ball?

A bag contains 3 red ,3 white and 3 green balls. One ball is taken out of the bag at random. What is the probability that the ball drawn is (i) red (ii) not red (iii) either red or white.

A bag contains 3 red,3 white and 3 green balls.One ball is taken out of the bag at random.What is the probability that the ball drawn is (i)red (ii)not red (iii) either red or white.