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September 27th, 2008, 07:41 AM   #1
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permutation and combination

5 girls are to be arranged in a row . Find the number of ways of arranging them if the tallest and the shortest girl must not be at either end of the row
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September 27th, 2008, 11:45 AM   #2
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Re: permutation and combination

# of choices for first slot * # of choices for last slot * (# of remaining choices)!
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