Ritvik Gautam
Last Activity: 14 Years ago
total number of ways of arrangement ==> 5 5 5 5 5 ==> 55
number of ways in which vowels are repeated
since there are 2 vowels... and 3 words apart from the vowels...
Case 1:- 2 vowel 3 others
2 2 3 3 3
Case 2:- 3 vowel 2 others
2 2 2 3 3
Case 3:- 4 vowel 1 other
2 2 2 2 3
Case 4:- 5 vowels
2 2 2 2 2
No of ways in which vowel is not repeated ==> total number of ways - no of repeititions..
==> 3125-108-72-48-32
==>2865