Q. 85.0( 3 Votes )

In how many ways

Answer :

To find: number of ways in which a vowel, a consonant and a digit be chosen out of the 26 letters of the English alphabet and the 10 digits.


e.g.



Way of selecting a vowel from 5 vowels=5C1


Way of selecting a consonant from 26 consonants=21C1


Way of selecting a digit from 10 digits=10C1


So ways of choosing a vowel, a consonant, a digit=5C1 × 21C1 × 10C1


=5 × 21 × 10


=1050


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