In how many ways you can arrange the letters in the alphabet (A-Z) such that no two vowel letters are next to each other (A,E,I,O,U)?
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\mathbf{21!
\times \frac{22!}{17!}}
.
In how many ways you can arrange the letters in the alphabet (A-Z) such that no two vowel letters are next to each other (A,E,I,O,U)?
\mathbf{21!
\times \frac{22!}{17!}}
.