in how many ways can the letters of the word director be arranged so that the three vowels are never together
Answers
Answered by
3
Answer:
Step-by-step explanation:
Let the letters be D , I , R , E , C ,T , O , R
The vowels here are I , E , O .
Total ways of arranging the letters - 8!
No. of ways in which the letters are arranged such that the three vowels are together - 3! * 6!
∴ No. of ways in which the vowels are never together = 8! - (3! * 6!)
Similar questions