Permutation problem

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Q/ How many arrangement can be made out of letter of word ``interference`` so that no two consonanant are  together?

A}360

A}240

C}840

D}20

Replies (1)

Hello Dear Manish,

 

The answer is none of these. The answer is not possible as the number of consonants are greater than the number of vowels in the word "interference".

 

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