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concept
Posts:
1
Registered:
4/3/13


Expected number of questions to win a game
Posted:
Apr 3, 2013 9:57 AM


Let, a person is taking part in a quiz competition. For each questions in the quiz, there are 3 answers, and for each correct answer he gets 1 point. When he gets 5 points, he wins the game. But, if he gives 2 consecutive wrong answers, then his points resets to zero (i.e. if his score is now 4 and he gives 2 wrong answers, then his score resets to 0).
My question is, on an average how much questions he needs to answer to win the game? Plz, someone give answer.



