If all the letters of the word 'AGAIN' are arranged in a dictionary , then what is the 20th word??
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AGANI
INAGA
AGNIA
AINGA
AAING
GNIAA
ANIGA
ANGIA
AIGAN
ANumber of words starting with A are
4!=
24
Number of words starting with I are
2!
4!
=
12
Number of words starting with G are
2!
4!
=
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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