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Suppose you are at a party with 19 of your closest friends (so including you, there are 20 people there). Explain why there must be least two people at the party who are friends with the same number of people at the party. Assume friendship is always reciprocated.

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Answer:

The answer is in the attachment. Thanks

Step-by-step explanation:

Suppose you are at a party with 19 of your closest friends (so including you, there-example-1
User Abdelhedi Hlel
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