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Question

The number of ways in which the letters of the word "VALEDICTORY" be arranged so that the vowels may never be separated is

A
7!4!
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B
8!4!
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C
7!8P4
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D
4!3!
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Solution

The correct option is B 8!4!
The total number of vowels is four.

Making a pack of 4, we get total (114)+1 objects

That is total of 8 objects.

Now the number of ways of arranging 8 objects is 8! ways.

There will be an internal arrangement of the vowels in 4! ...(4 vowels).

Hence the required permutation is
8!(4!).

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