Three people flip coins. If one person has a different face showing from the other two, that person loses and the game is over. Find the probabitlity that the number of turns taken to determine the loser is a multiple of 2.

I know there is a 3/4 chance of the game ending on each turn and that there is a 1/4 chance of the game continuing on each turn but i am confused on how to solve the rest.

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The answer is 20 The chance of the game ending on an odd ... View the full answer