Permutation               

                     Lesson 1

Problem:       Evaluate 11! / ₈P₃

Solution        11! = 11 x 10 x 9 x 8 x 7 x 6 x 5 × 4 × 3 × 2 × 1 = 39916800.00

Step 1:

Solution       ₈P₃ = 8! / (8 – 3)! = 8! / 5! = 

Step 2:            8 x 7 x 6 x 5 x 4 x 3 x 2 × 1 / 5 x 4 x 3 x 2 x 1 = 336.00

Solution        11! / ₈P₃ = 39916800 / 336 = 118800.00

Step 3:

                                                            Solution      Answer: 118800.00

Step 4:

Complete

                                                            Try two practice problems:

                                    Solve:                                                                 

A.

Evaluate 1! / 6P1

B.

Evaluate 5P2 / 7P4

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