In this video, we will learn an important concept – How to find the rank of any word in a dictionary.

Two Questions Discussed

IIT JEE ADVANCED 2007

The letters of the word COCHIN are permuted and all the permutations are arranged in an alphabetical order as in an English dictionary. The number of words that appear before the word COCHIN is

(A) 360 (B) 192 (C) 96 (D) 48

Answer (C)

JEE Main 2016

If all the words (with or without meaning) having five letters, formed using the letters of the word SMALL and arranged as in a dictionary; then the position of the word SMALL is

(A) 59th (B) 52th (C) 58th (D) 46th

Answer (C)

TRY YOURSELF Questions

AIEEE 2005

If letters of the word SACHIN are arranged in all possible ways and those words are written out in the dictionary, then the word SACHIN appears at serial number

(A) 601 (B) 600 (C) 603 (D) 602

Answer (A)

If letters of the word PATANA are arranged in all possible ways as in a dictionary, then the word PATANA from the last is

(A) 20 (B) 18 (C) 19 (D) 21

Answer (C)

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thanks sir …………………………………….for the awesome lectues on p and c

thanks sir for wonderful video

thanks sir for wonderful video

Sir I really appreciate your labour and hard work for us. but sir I have a small suggestion, can you make a WhatsApp group in which all of us JEE aspirants can join and discuss various studies, share notes. This would not only be beneficial for me but all others watching your video. Motive this would make social media more productive. This I think you should at least once think over it ??.

Hoping to hear from you. ?

Thanking you,

Ronit

Sir I feel problem in this concept rank of patana

sir,please provide the solution of the last question…..it will be very helpful

ATTEnTION to ALL ITS "PATNA" NOT PATANA", and then you get the answer 19th word

Sir in patana que I solve I get rank at 99 but when I add sub section star from after fixing PA…. get 19 what is that I don't understand

very thanx

sir ek trigonometry par bnayiye

SIR I M NOT GETTING ANSWER OF THE QUESTION "PATNA", CAN YOU PLEASE SOLVE IT