Mathematics Homework Solutions
#46883
Word problem - A person has 14 close friends.
A person has 14 close friends.
(a) Suppose that two of her friends (of the 14 of either gender) do not like each other. If one of the two is invited, the other will not come to the party. How many ways are there to invite 8 people to the party. Explain.
(b) Suppose that two of her friends are a couple. She cannot invite one of the 2 without inviting the other. How many ways are there to invite 8 people to the party. Explain.
This shows how to solve a word problem involving counting techniques.
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