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OpenStudy (anonymous):
How many arrangements of the letters in the word "SCHOOLS" are there? 1,260 2,520 5,040
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OpenStudy (anonymous):
is it 5040?
OpenStudy (anonymous):
hm this is 7! divide (2! X 2!) = 1260
OpenStudy (anonymous):
but there is 2 0's and 2 S's. these repetition has to be removed as well
OpenStudy (anonymous):
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