Question

The letters of the word ${}^{\prime }NEPA{L}^{\prime }$ are arranged in all possible ways.The number of arrangements in which the relative position of vowels and consonants are not changed is

Answer 1

${}^{\prime }NEPA{L}^{\prime }$
Since, the relative positions of vowels and consonants should not be changed, the vowels and consonants can interchange their places among themself.
$=3!\times 2!=12$