Permutations And Combinations

Question
CBSEENMA11014154

How many different words can be formed out of letters of words ‘TRIBUNE’ so that:

(i) first letter is a vowel (ii) no two vowels are together

(iii) relative position of vowels and consonants remains unchanged?




Solution

Solution not provided.
Ans. (i) 2160,  (ii) 1440,  (iii) 144

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