Skip to content
Related Articles

Related Articles

QA – Placement Quizzes | Permutation and Combination | Question 13
  • Last Updated : 07 Sep, 2016

In how many ways can the alphabets of the word ‘DERAIL’ be arranged so that the vowels come at the odd positions only?

(A) 12
(B) 18
(C) 24
(D) 36


Answer: (D)

Explanation: There are 3 consonants (D,R,L) and 3 vowels (E,A,I).
There are 3 odd positions and 3 even positions: O E O E O E.
Therefore, required number of arrangements = 3P3 * 3P3 = 6 * 6 = 36.


Quiz of this Question
Please comment below if you find anything wrong in the above post

Attention reader! Don’t stop learning now. Get hold of all the important DSA concepts with the DSA Self Paced Course at a student-friendly price and become industry ready.

My Personal Notes arrow_drop_up
Recommended Articles
Page :