Question 880720
If order mattered, say for example "red,green,yellow,blue" was different from "green,red,yellow,blue", then you'd use a permutation


If order doesn't matter, then you'd use a combination.



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I think order doesn't matter since as long as the colors are together, it doesn't matter how you rearrange them. So that's why I think you'll use a combination.


If you restrict things by saying "red,green,yellow,blue" was different from "green,red,yellow,blue", then you'd use a permutation, but it doesn't have that requirement mentioned.


However, the argument could go either way in my opinion because of missing info or poorly stated instructions.