Home » Aptitude » Permutation and Combination

How many words of 4 consonants and 3 vowels can be made from 12 consonants and 4 vowels. If all the letters are different?

Correct Answer: 285120

Explanation:

Required no. of words = 12P4 x 4P3
= 12 x 11 x 10 x 9 x 4 x 3 x 2
= 120(100 - 1) x 24
= 288000 - 2880
= 285120


← Previous Question Next Question→

Discussion & Comments

No comments yet. Be the first to comment!
Join Discussion