Lectures - 2.2 Counting Arrangements: Permutations

Quiz 2.2 #1

How many 3-letter permutations can be formed with the set:
{A, B, C, D, E}?
[Try using both the formula and slots]

  • A. 20
  • B. 60
  • C. 120

Quiz 2.2 #2

How many 6 letter arrangements can be formed from the word “effect”?

  • A. 30
  • B. 60
  • C. 180

Factorial Tutorial

Permutations Made Easy - Slot Tutorial