Question 1084227
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{{{11^5}}} = 161051.


Option B).


Any of 11 letters in  the first position gives 11 options.

Any of 11 letters in  the second position gives 11 independent options.

. . . and so on . . . 


In all, it gives  {{{11^5}}} = 161051 5-letter words.
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Solved.