Grade 12Differential Calculushow to calculate rank in permutations yedu 9703562152 mahendra 13 Years agoGrade 12
Shaurya Gupta13 Years agodepends if for cbse direct way - by fixing the first lettre alphabetically of the word and finding the total no of each words formed starting from A if the word is say ''AND'' then we know that the first word is ADN, then AND . which will give 2. For IIT-JEE the method is complex.