A box contains 3 red and 4 blue balls. Two balls are drawn one by one without replacement. Find the probability of getting both balls red.

A bag contains 5 white and 3 black balls. Two balls are drawn at random one after the other without replacement. Find the probability that both balls drawn from the bag are black.

A box contains 5 white, 7 red and 8 black balls. If four balls are drawn by one with replacement what is the probability that All are white?

A box contains 5 white, 7 red and 8 black balls. If four balls are drawn by one with replacement what is the probability that None is white?

A bag contains 5 white balls and 3 black balls. Two balls are drawn at random one after the other without replacement. Find the probability that the ball drawn first is white.

A bag contains 5 white balls and 3 black balls. Two balls are drawn at random one after the other without replacement. Find the probability that the first draw gives a white ball and the second draw gives a black ball

A bag contains 8 red balls and 5 white balls. Two successive draws of 3 balls are made without replacement. Find the probability that the first drawing will give 3 white balls and the second 3 red balls.

An urn contains 9 red, 7 white and 4 black balls. If two balls are drawn at random, find the probability. that, (i) both the balls are red (ii) one ball is white, (iii) the balls are of the saime colour (iv) one is white and other red.

A box contains 6 red, 5 blue and 4 green balls. 3 balls are drawn from the box. Find the probability that All are blue.

An urn contains 10 black and 5 white balls. Two balls are drawn from the urn one after the other without replacement. What is the probability that both drawn balls are black?

A bag contains 5 white and 3 black balls. Two balls are drawn at random one after the other without replacement. Find in how many ways the two balls can be drawn.