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In the conference of 8 persons, every person handshake with each other only once, then find the total number of hand shook.

1 Answer

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Best answer

When two persons shake hand with each other, then this is taken as one handshake.

Hence, the number of handshakes is equal to choosing 2 persons out of 8 persons.

Number of handshake

Hence, the required number of hand shaken is 28.

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