A box contains 3 red and 5 blue balls. Two balls are drawn one by one at as time at random without replacement. Find the probability of getting 1 red and 1 blue ball.

An urn contains 7 red and 4 blue balls. Two balls redrawn at random with replacement. Find the probability of getting 2 red balls 2 blue balls one red and one blue ball.

An urn contains 6 red and 5 blue balls.Two balls are drawn at random with replacement. Find the probability of getting (i) 2 red balls (ii) 2 blue balls (iii) one red and one blue ball

An urn contains 7 red and 4 blue balls.Two balls are drawn at random with replacement. Find the probability of getting (a) 2 red balls (b) 2 blue balls (c) one red and one blue ball.

A abg contains 5 red and blue balls. If 3 balls are drawn at random without replacement, them the probability of getting exactly one red ball is

An urn contains 6 red and 9 blue two balls are drawn from urn one after another without replacement . Find the probability of drawing a red ball when a blue ball has been drawn from the urn .

A bag contains 5 white,7 red and 3 black balls.If three balls are drawn one by one without replacement,find the probability that none is red.

A box contains 20 red and 15 black balls. Two balls are drawn from the box one after the other without replacement. What is the probability that both drawn balls are red ?

A box contains 4 red and 8 white balls. If 4 balls are drawn one by one with replacement then the probability of getting 3 white balls is

A bag contains 5 red and 3 blue balls. If 3 balls are drawn at random without replacement, then the probability of getting exactly one red ball is (15)/(29) b. (15)/(56) c. (45)/(196) d. (15)/(392)

A box contains x red balls and 10 black balls. 3 balls are drawn one by one without replacement. If the probability of choosing 3 red balls is equal to the probability of choosing 2 red and 1 black ball, then the possible value of x can be