## July 02, 2013

Friends, in our last post we have discussed about the basics of Permutations and Combinations. With this post we are giving you a pdf file of the brief summary of Permutation and Combination shortcut techniques. We have tried to cover almost all important points you should know about Permutations and Combinations. This file consists of basic formulas, ways of choosing same kind of people from the given group, ways of choosing different kinds of people from the given group, choosing different kinds of people to form groups, Selecting letters, balls and other identical objects, arranging people in a specific order, arranging different types of objects in a specific order, arranging people in a circular way etc. We hope this small pdf file will help you getting a clear idea on Permutations and Combinations. Now just download the file from below link and prepare well. We shall start some practice problems on Permutations and Combinations from our next post. All the Best and happy Reading :)

1. ma'am really done a grt work..!:)

2. I got transfor to devarhalli davangere dist. and I want surrounding of bellary hospet koppal. if anybody want to mutual transfor kindly contact me my mail id is md_akram22@yahoo.com

3. YOU HAVE HELPED VARIOUS STUDENTS A LOT....THANX A LOT TO UR TEAM N A SALUTE TO ALL OF UR WORK N EFFORTS

4. If question is,

Find the number of arrangement of all 7 letters of word "MINIMUM"
1) the 3 letters M are separate

Ans : 4!/2! * 5C3

why not 4!/2! *5C3 *3!

plz explain mam.

1. have u got any reply? if so pls post it

2. because the letters M are identical

3. because the letter M is identical so no requirement of treating 3 M's as different .if the question was for arranging women or girl or men or boy then we would be treating them as 3 different pesons and taking 3! ways to arrange themselves also since 3 women or girl or boy or men cant be identical unless it is given in question.
Thank You.

5. very useful ..thanks a ton

6. Thank you