There are two urns containing 5 red and 6 white balls and 3 red and 7 white balls respectively. If two balls are drawn from the first urn without replacement and transferred to the second urn and then a draw of another two balls is made from it, what is the probability that both the balls drawn are red?

There are two urns. The first urn contains 3 red and 5 white balls whereas the second contains 4 red and 6 white balls. A ball is taken at random from the first urn and is transferred to the second urn. Now another ball is selected at random from the probability that the second ball would be red is (A) 7/20 (B) 35/88 (C) 17/52 (d) 3/20

An urn contains 9 red, 7 white, and 4 black balls if two balls are drawn at random the probability that both the balls are red is

Two urns contain respectively 2 red , 3 white and 3 red 5 while balls . One ball is drawn at random from the first urn and transferred into the second .A ball is now drawn from the second second urn and it turns out to be red . find the probability that the transferred ball from first urn was white .

Threre are 9 red,7 white and 4 black balls in an urn. Two balls are drawn at random from the urn. What will be the probability that both the balls are red ?

An urn contains 10 white and 3 black balls.Another urn contains 3 white and 5 black balls.Two balls are drawn from the first urn and put into the second urn and then a ball is drawn from the second urn and the probability that ball drawn from 2nd urn is white.

An urn contains 10 white and 3 black balls.Another urn contains 3 white and 5 black balls.Two balls are drawn from the first urn and put into the second urn and then a ball is drawn from the second urn.Find the probability that ball drawn from 2nd urn is white.

An urn contains 7 white, 5 black and 3 red balls. Two balls are drawn at random, Find the probability that : both the balls are red.

An urn contains 4 black and 6 red balls. If two balls are drawn at random from the urn without replacement ,then the probability that both are black is

A urn contains 9 red, 7 white and 4 black balls. A ball is drawn at random. What is the probability that the ball drawn will be: red .