. A bag contains n white, n black balls. Pair of balls are drawn without replacement until the bag is empty. Then Find the probability that each pair consists of one white and one black ball is

A bag contains n white and n red balls.Pairs of balls are drawn without replacement until the bag is empty.Show that the probability that each pair consists of one white and one red ball is (2^(n))/(2nC_(n))

A bag contains n white and n black balls. Pairs of balls are drawn without replacement until the bag is empty. If the number of ways in which each pair consists of one black and one white ball is 576, then n is

A bag contains n white and n red balls. Pairs of balls are drawn without replacement until the bag is empty. If the number of ways in which each pair consists of one red and one white ball is 14400, then n is: (A) 120 (B) 144 (C) 5 (D) 10

A bag contains W white and 3 black balls. Balls are drawn one by one without replacement till all the black balls are drawn. Then find the probability that this procedure for drawing the balls will come to an end at the rth draw.

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 bag contains 5 white,7 red and 4 black balls.If four balls are drawn one by one with replacement,what is the probability that none is white?

A bag contains 5 white; 7red and 4 black balls. If four balls are drawn one by one with replacement; what is the probability that none is white?

A bag contains 10 white and 15 black balls. Two balls are drawn succession without replacement.What is the probability that the first ball is white and the second is black?

A bag contains 10 white and 15 black balls. Two balls are drawn in succession without replacement.What is the probability that first is white and second is black?