Mathematics, 28.02.2020 21:34, tristenr5

There are 120 athletes at a meeting. They
each give a Valentine's Day card to
everyone else. How many cards were
given?
A) Permutation; 2,856
B) Permutation; 14,280
C) Combination; 7,140
D) Permutation; 4,760

Answers: 2

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There are 120 athletes at a meeting. They
each give a Valentine's Day card to
everyone e...