goformit100
  • goformit100
If the letters of the word RACHIT are arranged in all possible ways as listed in dictionary. Then what is the rank of the word RACHIT ?
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
At vero eos et accusamus et iusto odio dignissimos ducimus qui blanditiis praesentium voluptatum deleniti atque corrupti quos dolores et quas molestias excepturi sint occaecati cupiditate non provident, similique sunt in culpa qui officia deserunt mollitia animi, id est laborum et dolorum fuga. Et harum quidem rerum facilis est et expedita distinctio. Nam libero tempore, cum soluta nobis est eligendi optio cumque nihil impedit quo minus id quod maxime placeat facere possimus, omnis voluptas assumenda est, omnis dolor repellendus. Itaque earum rerum hic tenetur a sapiente delectus, ut aut reiciendis voluptatibus maiores alias consequatur aut perferendis doloribus asperiores repellat.
katieb
  • katieb
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goformit100
  • goformit100
@dan815
dan815
  • dan815
R before T so
dan815
  • dan815
go backwards for T there are T and 5! arrangements for R there are another 5! arrangements

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More answers

goformit100
  • goformit100
Ok then ?
dan815
  • dan815
but A i s the first letter so
anonymous
  • anonymous
Indeed, R is after every letter but T, so we may count the number of words that we can form assuming T is at the beginning:|dw:1371200958395:dw|
dan815
  • dan815
this word is the first word in R series meaning its the first word after the 3rd LAST letter arrangements
dan815
  • dan815
because this word is arranged alphebetically correct after R anyway
dan815
  • dan815
so u go 6! - 2*5! +1
anonymous
  • anonymous
... so we know the word with lowest rank beginning with R will be at \(6!-5!=5\times5!=600\) Now, we must determine how many words would appear before RATCHID if arranged in such an order. Consider the subword ATCHID -- repeat the process!
anonymous
  • anonymous
highest* rank
dan815
  • dan815
hmm did i do that right oldrin
dan815
  • dan815
ya its right i think
anonymous
  • anonymous
http://praty23.wordpress.com/2012/05/15/rank-of-a-word-in-dictionary/
dan815
  • dan815
6! is the total number of "messed up words" and 5! is the number of words starting with T we cluse and exclude all the words starting with R so another 5! but u want the first word in R so add 1 and u have ur rank
goformit100
  • goformit100
Thanks

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