Question

There are eight coins, seven of which have the same weight and the other one weighs more. In order to find the coin having more weight, a person randomly chooses two coins and puts one coin on each side of a common balance. If these two coins are found to have the same weight, the person then randomly chooses two more coins from the rest and follows the same method as before. The probability that the coin will be identified at the second draw is

Answer 1

Hey mate...... Here is the correct answer :

6 by 21

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