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Use: nCk = n!/k! (n-k)!

At a local cafeteria there are ten vegetable selections available. How many three-vegetable plates may be made

1 Answer

2 votes

Answer:

120

Explanation:

The formula
nCk=(n!)/(k!(n-k)!) describes how many ways
k items can be chosen given
n total items. In this scenario,
n=10, and
k=3, thus:


(10!)/(3!(10-3)!)=120

This means that you can make 120 three-vegetable plates

User Vivek Gani
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