1) Six letters words are formed
using all the letters of the word
NUMBER, if these words are
arranged in the dictionary
Order, the rank of the word
NUMBER'is
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Number 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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