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How many times did the coin landed on Heads ?

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Christopher and Jonathan were having bets. They decide that a coin will be flipped twenty times and each time it turns heads, Christopher will give $2 to Jonathan and each time it turns out to be Tale, Jonathan will give 3$ to Christopher. After flipping for twenty times none of the both won or lost any amount.

How many times did the coin landed on Heads ?

posted Oct 1, 2014 by Rajni

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