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Find the number of ways of selection of ...

Find the number of ways of selection of at least one vowel and one consonant from the word TRIlPLE.

Text Solution

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We have consonants T, R, P, L and vowels I, E.
Number of ways of selecting at least one consonant `=2^(4)-1=15`
Number of ways of selecting at least one vowel `=2^(2)-1=3`
So, required number of selections `=15xx3=45`
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