# Math Help - Permutations

1. ## Permutations

How many arrangements in the word NUMBER begin and end with a vowel ??

2. Here are two $ENMBRU~\&~UNMBRE$.
Now count the middle four of each of those two.

3. and if there were 720 arrangements of the word NUMBER, how many of the arrangements be beginning and ending with a vowel ?

would it be like, there are 4 non vowel words, which could be arranged in 4!= 24 different ways, and there are 2 vowel words which could be arranged in 2!= 2 different ways. So, 24 X 2 = 48.... Am I correct ???

4. Originally Posted by creatively12
there are 4 non vowel words, which could be arranged in 4!= 24 different ways, and there are 2 vowel words which could be arranged in 2!= 2 different ways. So, 24 X 2 = 48.... Am I correct ???
Yes you are correct.

5. thanks for your help, I really appreciate it.........