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Ask community Community Discussion Question: permutation and combinations
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newton (244)

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what will be the rank of word great if all the permutations of letters of the word(only 5 letter words) great are arranged im dictionary order?  {repetition of alpha. is not allowed }


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Srujana (2785)

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Arranging the letters in alphabetical order,

a,e,g,r,t

No of words beginning with a ... 4!
beginning with e ... 4!
beginning with ga ... 3!
beginning with ge ... 3!
beginning with gra ... 2!

And finally great ... 1

Rank = 2*(4!+3!)+2!+1.


"It does not do to dwell on dreams and forget to live, remember that."  ~Albus Dumbledore, Sorcerer's Stone.

"It is our choices, Harry, that show what we are, far more than our abilities."  ~Albus Dumbledore, Chamber of Secrets.
"Understanding is the first step to acceptance, and only with acceptance can there be recovery."  ~Albus Dumbledore, Goblet of Fire.

"Do not pity the dead Harry, pity the living, and above all, those who live without love."  ~Albus Dumbledore, Half Blood Prince.
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