- #1

rajeshmarndi

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## Homework Statement

From 5 consonants and 4 vowels, how many words can be formed consisting of 3 consonants and 2 vowels

The book solved it using combination

C(5,3) * C(4,2) * 5! = 7200

i.e I understand the 1st two term give the unique 5 words that can be formed with 5 consonants and 4 vowels and multiplying with 5! gives the permutation of all the 5 letters words

## Homework Equations

## The Attempt at a Solution

I tried on my own and used permutation

P(5,3) * P(4,2) = 720

I understand the book solution but then where am I wrong here?