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 ?
Stacey Warren - Expert brainly.com
Hey! We 've verified this expert answer for you, click below to unlock the details :)
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.
I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!
R before T so
for T there are
T and 5! arrangements
for R there are another 5! arrangements
Not the answer you are looking for? Search for more explanations.
Ok then ?
but A i s the first letter so
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|
this word is the first word in R series meaning its the first word after the 3rd LAST letter arrangements
because this word is arranged alphebetically correct after R anyway
so u go
6! - 2*5! +1
... 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!
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