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Question

Different words are being formed by arranging the letters of the word ARRANGE. All the words obtained are written in the form of a dictionary
Number of words in which at least one vowel between the two consonants is

A
341
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B
342
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C
36
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D
None of these
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Solution

The correct option is C 36
First we write the consonants: GNRR

We arrange them in 4!2!=12 ways.

There are 3 vowels and 3 gaps between the consonants.

Now, we place 1 vowel in each of the 3 gaps.

Now, the vowels may be arranged in 3!2!=3 ways.
So, total = 12×3=36

Hence, (C) is correct.

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