Permutations And Combinations

Question
CBSEENMA11014137

 How many words with or without meaning can be formed using letters of word ‘DAUGHTER’ so that vowels and consonants occur together ?

Solution

Solution not provided.
Ans. 1440

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Some More Questions From Permutations and Combinations Chapter

Determine K, so that K + 2, 4K – 6 and 3K – 2 are three consecutive terms of an A.P.