How many 4-letter words (with or without meaning) containing two vowels can be constructed using only the letters (without repetition) of the word 'LUCKNOW'?

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Quantrex Academy · Accepted Answer

Correct answer: A. 240

Number of vowels (v, 0)=2 So, Selecting two consonants taking out of 5 in ^5 C_2 ways Number of 4 letter words containing two vowels = ^5 C_2 × 4!=240

How many 4-letter words (with or without meaning) containing two...

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