How many different ways can you arrange the letters in “may”?

A permutation is a selection of a group of objects in which order is important.

In our introductory example, we have 6 permutations.

MAY AMY YMAMYA AYM YAM

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!

!n r

nP

n r

n is the number of itemsr is the amount of items taken at a time

In our introductory example, n is equal to 3 and r is equal to 3.

3 3

3! 66

3 3 ! 1P

How would you use the “line method” to solve this problem?

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In every Indian’s game, there are 9 hitters. How many different ways can the 9 hitters be arranged?

How many different ways can you rearrange the letters in “math”?

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