`A, B and C` toss a coin one after another. Who ever gets head 1st will win the game. If A starts the game the probability of A's winning is

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

(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.

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 alternately throw with a pair of dice. Who gets a sum of 7 points 1 th will win the game.If A starts the game,the probability of his winning is

A player X has a biased coin whose probability of showing heads is p and a player Y has a fair coin. They start playing a game with their own coins and play alternately. The player who throws a head first is a winner. If X starts the game, and the probability of winning the game by both the players is equal, then the value of 'p is :

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.

A bag contains a white and b black balls.Two players,A and B alternately draw a balls.Two the bag,replacing the ball each time after the draw till one of them draws a white ball and wins the game.A begins the game.If the probability of A winning the game.if the xx that of B, then find the ratio a:b

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.