SOLUTION: 4 red, 3 yellow, 2 green marbles How many arrangements of 5 marbles possible if there is to be at least one of each colour.

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Question 454631: 4 red, 3 yellow, 2 green marbles
How many arrangements of 5 marbles possible if there is to be at least one of each colour.
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
This answer is wrong as I calculate the
# of 9-long arrangements when I got 1260.
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I should have calculated the # of 5-log
arrangements that are unrestricted as
to color combinations.
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Cheers,
Stan H.