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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?