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A couples party


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You and your spouse invite four other couples to a party. During the course of the conversation, it is discovered that, prior to the party, each person except you was acquainted with a different number of the people present. Assuming the acquaintance relationship is symmetric (i.e., if you are acquainted with someone, that person is also acquainted with you), then how many people did your spouse know prior to the party? How many people did you know?

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5 are known to me, and 5 to my wife? I found out that the sum of ppl known to a person amd his spouse is =10, and since all except me know diff no. Of ppl,then 5+5 case has to be avoided. So it should be for me n spouse

care to explain your answer?

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