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Q.

Find the number of words with 2 vowels and 3 consonants selected from word ‘MIXTURE’

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answer is 1.

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Detailed Solution

Given word is MIXTURE
No. of vowels = 3
No. of consonants = 4
The 2 vowels can be selected from 3 vowels in C2   3 ways and the 3 consonants can be selected from 4 consonants in =C3   4 ways
Required no. of selections =C2   3×C3   4 ways and they can be arranged in 5! ways
 The no. of 5 letters words formed =C2   3×C3   4×5!=1440

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