Combinatorics Year 11 Question (1 Viewer)

zacn

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How many ways are there to arrange 10 people around 2 tables, 1 oak and 1 mahogany, with 5 at each table?
 

Canteen

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Choose 5 people to sit at the mahogany then let the rest sit at the oak:
 

Canteen

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oops forgot to arrange them around the tables!
That would make it:

I think that should be correct.
 

zacn

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oops forgot to arrange them around the tables!
That would make it:

I think that should be correct.
That's what I got but the answers have some number around 145000
 

Canteen

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Lol. I can't type into my calculator. I did:

Should be:

as I had above.
 

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