# Permutation or Combination?

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• November 15th 2008, 09:24 PM
magentarita
Permutation or Combination?
A teacher is making a multiple choice quiz. She wants to give each student the same questions, but have each student's questions appear in a different order. If there are twenty-seven students in the class, what is the least number of questions the quiz must contain?
• November 16th 2008, 10:33 AM
HallsofIvy
There are n! ways of ordering n questions. What is the smallest n so that $n!\ge 27$?