General Permutation / Combination Question Watch

bigmansouf
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#1
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I am trying to understand how to identify if a question is a permutation or combination question before apply the formulae.

I want to know how is this question a permutation;

How many ways can 6 people sit around a table?


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mqb2766
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It should just be a permutation of the objects, though the symmetry round the table would mean a bit of reasoning about how you handle the first person.

For nPr and nCr, its really just about whether the order of the objects matters.
https://www.mathsisfun.com/combinato...mutations.html
Is on the simpler side,but quite well explained.
Last edited by mqb2766; 1 month ago
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bigmansouf
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(Original post by mqb2766)
It should just be a permutation of the objects, though the symmetry round the table would mean a bit of reasoning about how you handle the first person.

For nPr and nCr, its really just about whether the order of the objects matters.
https://www.mathsisfun.com/combinato...mutations.html
Is on the simpler side,but quite well explained.
thank you
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