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In a gathering, each of the guests shook hands with everybody else. if a total of 378 handshakes were made, how many guests were there? ​

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  • Réponse publiée par: joyce5512
    378 diveded by two because you need two people to be able to perform handshaking so the answer is 69 guests
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In a gathering, each of the guests shook hands with everybody else. if a total of 378 handshakes wer...