Diese Präsentation wurde erfolgreich gemeldet.
Wir verwenden Ihre LinkedIn Profilangaben und Informationen zu Ihren Aktivitäten, um Anzeigen zu personalisieren und Ihnen relevantere Inhalte anzuzeigen. Sie können Ihre Anzeigeneinstellungen jederzeit ändern.
Nächste SlideShare
×

# Permutation and combination

Permutation and combination

• Full Name
Comment goes here.

Are you sure you want to Yes No
• Als Erste(r) kommentieren

### Permutation and combination

1. 1. PERMUTATIONS & COMBINATIONS
2. 2. Introduction Numbers of different arrangements that can be made by taking some or all the items are called permutations of those items. Numbers of different groups that can formed by selecting some or all the items are called combinations of those items
3. 3. Permutations When these are ‘n’ items and we make arrangements of them taking ‘r’ at a time we get nPr arrangements. nPn means numbers of ‘n’ things taken ‘r’ at a time. Formula : nPr = n( n-1 )( n-2 )…….( n-r+1 ) = n ! _ ( n-r )!
4. 4. 1. Permutations of ‘n’ different things taken ‘r’ at a time Number of arrangements = nPr 2. Permutation where a particular item is to be in a specified place 3. Circular Permutation when there are ‘n’ objects they can be arranged in ( n-1 ) ways. 4. Permutations of things not all different n !_ p! q! r! 5. Permutation with repetition (or replacement) nr
5. 5. Combinations nCr means the number of combination, without repetition of ‘n’ things taken ‘r’ at a time. Formula: nCr = n !____ r! ( n-r )!
6. 6. Example 1 : Find who many way a cricket team containing 11 players can be formed from 15 high class players available. Ans: n= 15 and r=11 Number of ways of forming cricket team = 15C11 = 1365
7. 7. Conclusion Permutation mainly deals with arrangements of a given set of items. And Combination deals with selection of items from a group of items

### Loggen Sie sich ein, um Kommentare anzuzeigen.

• #### sharranbaktha

Jun. 30, 2015
• #### tamsyloate

Mar. 25, 2016
• #### AayushVaishnav2

Sep. 27, 2019
• #### ria16cris

Nov. 19, 2019
• #### fabiloneDC

Nov. 23, 2019

Dec. 1, 2019

Feb. 3, 2020

Aug. 5, 2020
• #### 7873748603

Jan. 11, 2021

Permutation and combination

#### Aufrufe

Aufrufe insgesamt

6.430

Auf Slideshare

0

Aus Einbettungen

0

Anzahl der Einbettungen

15

65

Geteilt

0

Kommentare

0

Likes

9