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Zoe has 5 maple, 5 fir and 3 pine trees that she wishes to plant in a row. The trees from the same species appear
Zoe has 5 maple, 5 fir and 3 pine trees that she wishes to plant in a row. The trees from the same species appear to be identical. {Hint: It is the same as having different arrangement for a give word}
a)How many possible arrangements are there of the trees?
b)If the first and last tree must be maple, how many arrangements are there?
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