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A bag contains (2n+ 1) coins. It is known that n of these coins have a head on both sides whereas the rest of the coins are fair. A coin is picked up at random from the bag and is tossed. If the probability that, the toss results in a head is 3142, then determine the value of n.

Answer» A bag contains (2n+ 1) coins. It is known that n of these coins have a head on both sides whereas the rest of the coins are fair. A coin is picked up at random from the bag and is tossed. If the probability that, the toss results in a head is 3142, then determine the value of n.


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