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March 25, 2017

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5 people went to a meeting. To start off each person was asked to go around and introduce themselves to everyone there. How many introductions were made? Start with 2 then 3 people etc. looking for a pattern

  • Maths - ,

    this is a combination question.

    You are choosing pairs from 5 people, which is C(5,2) or 10

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