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Title: If four students enter a classroom that has 10 vacant seats, in how many ways can they be seated? Post by: tonyekwelu on Oct 3, 2013 If four students enter a classroom that has 10 vacant seats, in how many ways can they be seated?
Which of the following formulas do I use. Factorial Permutation of n objects take r at a time nPr= n!/(n-r)! Combination of n objects taken r at a time nCr = n!/r!(n-r)! Please help. :) If I choose nPr = 5040 different ways. That seems so much is it correct? Title: If four students enter a classroom that has 10 vacant seats, in how many ways can they be seated? Post by: rikantank on Oct 3, 2013 Your answer is correct. It's a permutation question, because a different ordering of people in the same four seats counts as a different arrangement.
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