AP EAPCET 23-Aug-2021 Shift 2 Paper

Given, word is MOBILE
There are 3 vowels and 3 consonants ∴ Number of ways to fill and arrange odd places with consonants =‌3C3.3!
and number of ways to fill remaining 3 places =3!
∴ The number of words =‌3C3.3!.3!=36