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Question

If all permutations of the letters of the word "AGAIN" are arranged as in dictionary, then fiftieth word is

A
NAAGI
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B
NAGAI
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C
NAAIG
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D
NAIAG
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Solution

The correct option is B NAAIG
Number of words starting with A are 4!=24

Number of words starting with I are 4!2!=12

Number of words starting with G are 4!2!=12

Number of words till this=24+12+12=48, therefore two more words are required
NAAGI and NAAIG
fiftieth word is NAAIG

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