Combinatorics Year 11 Question (1 Viewer)

[zacn]

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

 

[Canteen]

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

 

[Canteen]

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

I think that should be correct.

 

[zacn]

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]

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

Should be:

as I had above.