A person starting with 64 rupees and making 6 bets, wins three times and loses three times, the wins and loses occurring in random order. The chance for a win is equal to the chance for a loss. If each wager is for half the money remaining at the time of the bet, then the final result is:
a gain of Rs 27
a loss of Rs 37
neither gain nor a loss
a gain or a loss depending upon the order in which the wins and losses occur
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