A and B toss a coin alternately till one of them gets a head and wins the game. If A starts the game, find the probability that B will win the game.

A and B toss coin alternately till one of them gets a head and wins the game.If A starts first,find the probability the B will win the game.

(i) A and B toss a coin alternately till one of them tosses a head and wins the game. If A starts the game, find their respective probability of winning. (ii) A and B throw a coin alternately till one of them gets a 'head' and wins the game. If A starts the game, find the probability of his winning at his third throw.

Two persons A and B throw a coin alternatively till one of them gets head and wins the game. Find their respective probabilities of winning.

A,B and C toss a coin one after another. Who ever gets head list will win the game.If A starts the game the probability of Al's winning is

Two persons A and B throw a die alternatively till one of them gets a three and wins the game. Find their respective probabilites of winning.