SSC
Government Jobs Exams
Numerical Ability
Permutation and Combination
In how many different ways can the letters of the word 'DETAIL' be arranged such that the vowels must occupy only the odd positions?
Read Solution (Total 2)
-
- 36 ways
Out of 6 positions (1)(2)(3)(4)(5)(6), Vowels E, A, I can be placed at positions (1) (3) (5) in 3P3 ways= 6 ways.
Similarly 3 consonants can be arranged at the remaining 3 positions in 3P3 ways = 6 ways.
Total number of ways = 6 x 6 = 36 - 7 years agoHelpfull: Yes(2) No(0)
- Total number of was= 6!=720
- 7 years agoHelpfull: Yes(0) No(1)
SSC Other Question