(This photo didnt even get up yet!) Use nCk = (n!)/(k! (n-k)) How many different combos of 6 children can fit on 4 chairs? [?] ways

Question

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


How many different combos of 6 children can fit on 4 chairs?


[?] ways

Answer 1

15 ways

Explanation:

`(6!)/(4!(6-4)!)=(6!)/(4!2!)=15`