Bank Exams Exam > Bank Exams Notes > Tips & Tricks for Government Exams > Tips & Tricks: Permutation & Combination
Permutation and Combination Tips and Tricks for Government Exams
Theory
Permutation implies arrangement where order of things is important and includes word formation, number formation, circular permutation etc. Combination means selection where order is not important and it involves selection of team, forming geometrical figures, distribution of things etc.
Factorial = Factorial are defined for natural numbers, not for negative numbers.
n! = n.(n-1).(n-2).........3.2.1
Formula
Permutation
- nPr = n! / (n-r)!
- If from the total set of n numbers p is of one kind and q ,r are others respectively then nPr = n! / p! × q! × r!.
- nPn = n!
Combination
- nCr = n!/ r! × (n-r)!
- nC0 = 1
- nCn = 1
- nCr = nCn - r
- nCa = nCb ⇒ a = b ⇒ a+b = n
- nC0 + nC1+ nC2+ nC3+ ...............+ nCn = 2n
Solved Examples
Question for Tips & Tricks: Permutation & CombinationTry yourself:In how many ways the letters of the word ‘MINIMUM’ be arranged taking all the letters?
View Solution
Question for Tips & Tricks: Permutation & CombinationTry yourself:In how many ways 5 rings can be worn on 3 fingers?
View Solution
Question for Tips & Tricks: Permutation & CombinationTry yourself:In how many ways the letters of the word ‘AUTHOR’ be arranged taking all the letters?
View Solution
The document Permutation and Combination Tips and Tricks for Government Exams is a part of the Bank Exams Course Tips & Tricks for Government Exams.
All you need of Bank Exams at this link: Bank Exams
|
66 videos|66 docs
|
FAQs on Permutation and Combination Tips and Tricks for Government Exams
| 1. What is the difference between permutation and combination? |  |
Ans.Permutation refers to the arrangement of items in a specific order, while combination refers to the selection of items without regard to the order. For example, the arrangements of the letters A, B, and C (ABC, ACB, BAC, etc.) are permutations, whereas selecting any two letters from those three (AB, AC, BC) are combinations.
| 2. How do I calculate the number of permutations of n items taken r at a time? | |
Ans.The number of permutations of n items taken r at a time can be calculated using the formula P(n, r) = n! / (n - r)!, where "!" denotes factorial, which is the product of all positive integers up to that number.
| 3. How do I calculate the number of combinations of n items taken r at a time? | |
Ans.The number of combinations of n items taken r at a time can be calculated using the formula C(n, r) = n! / [r! * (n - r)!], where "!" denotes factorial. This formula accounts for the fact that the order of selection does not matter.
| 4. Can you provide an example of a real-life situation where permutations and combinations are used? | |
Ans.A common real-life example of permutations is arranging books on a shelf. The order in which the books are placed matters, so different arrangements count as different permutations. An example of combinations is selecting team members from a group. The order of selection does not matter; thus, it is a combination.
| 5. What are some common mistakes to avoid when solving permutation and combination problems? | |
Ans.Common mistakes include confusing permutations with combinations (not considering the order), forgetting to apply the factorial function correctly, and failing to account for identical items in a set. To avoid these errors, it's essential to carefully read the problem and identify whether order matters.
Related Exams
About this Document
|
1.8K Views |
|
4.66/5 Rating |
|
Nov 21, 2024 Last updated |
Document Description: Tips & Tricks: Permutation & Combination for Bank Exams 2024 is part of Tips & Tricks for Government Exams preparation.
The notes and questions for Tips & Tricks: Permutation & Combination have been prepared according to the Bank Exams exam syllabus. Information about Tips & Tricks: Permutation & Combination covers topics
like and Tips & Tricks: Permutation & Combination Example, for Bank Exams 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises and tests below for Tips & Tricks: Permutation & Combination.
Introduction of Tips & Tricks: Permutation & Combination in English is available as part of our Tips & Tricks for Government Exams
for Bank Exams & Tips & Tricks: Permutation & Combination in Hindi for Tips & Tricks for Government Exams course.
Download more important topics related with notes, lectures and mock test series for Bank Exams
Exam by signing up for free. Bank Exams: Permutation and Combination Tips and Tricks for Government Exams
Description
Full syllabus notes, lecture & questions for Permutation and Combination Tips and Tricks for Government Exams - Bank Exams | Plus excerises question with solution to help you revise complete syllabus for Tips & Tricks for Government Exams | Best notes, free PDF download
Information about Tips & Tricks: Permutation & Combination
In this doc you can find the meaning of Tips & Tricks: Permutation & Combination defined & explained in the simplest way possible. Besides explaining types of
Tips & Tricks: Permutation & Combination theory, EduRev gives you an ample number of questions to practice Tips & Tricks: Permutation & Combination tests, examples and also practice Bank Exams
tests
|
Explore Courses for Bank Exams exam
|
|
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
Related Searches
Important questions
,Extra Questions
,Viva Questions
,Semester Notes
,Previous Year Questions with Solutions
,mock tests for examination
,Sample Paper
,Objective type Questions
,past year papers
,practice quizzes
,Permutation and Combination Tips and Tricks for Government Exams
,Permutation and Combination Tips and Tricks for Government Exams
,video lectures
,Permutation and Combination Tips and Tricks for Government Exams
,study material
,Exam
,shortcuts and tricks
,MCQs
,Summary
,Free
,ppt
;
Additional Information about Tips & Tricks: Permutation & Combination for Bank Exams Preparation
Tips & Tricks: Permutation & Combination Free PDF Download
The Tips & Tricks: Permutation & Combination is an invaluable resource that delves deep into the core of the Bank Exams exam.
These study notes are curated by experts and cover all the essential topics and concepts, making your preparation more efficient and effective.
With the help of these notes, you can grasp complex subjects quickly, revise important points easily,
and reinforce your understanding of key concepts. The study notes are presented in a concise and easy-to-understand manner,
allowing you to optimize your learning process. Whether you're looking for best-recommended books, sample papers, study material,
or toppers' notes, this PDF has got you covered. Download the Tips & Tricks: Permutation & Combination now and kickstart your journey towards success in the Bank Exams exam.
Importance of Tips & Tricks: Permutation & Combination
The importance of Tips & Tricks: Permutation & Combination cannot be overstated, especially for Bank Exams aspirants.
This document holds the key to success in the Bank Exams exam.
It offers a detailed understanding of the concept, providing invaluable insights into the topic.
By knowing the concepts well in advance, students can plan their preparation effectively.
Utilize this indispensable guide for a well-rounded preparation and achieve your desired results.
Tips & Tricks: Permutation & Combination Notes
Tips & Tricks: Permutation & Combination Notes offer in-depth insights into the specific topic to help you master it with ease.
This comprehensive document covers all aspects related to Tips & Tricks: Permutation & Combination.
It includes detailed information about the exam syllabus, recommended books, and study materials for a well-rounded preparation.
Practice papers and question papers enable you to assess your progress effectively.
Additionally, the paper analysis provides valuable tips for tackling the exam strategically.
Access to Toppers' notes gives you an edge in understanding complex concepts.
Whether you're a beginner or aiming for advanced proficiency, Tips & Tricks: Permutation & Combination Notes on EduRev are your ultimate resource for success.
Tips & Tricks: Permutation & Combination Bank Exams Questions
The "Tips & Tricks: Permutation & Combination Bank Exams Questions" guide is a valuable resource for all aspiring students preparing for the
Bank Exams exam. It focuses on providing a wide range of practice questions to help students gauge
their understanding of the exam topics. These questions cover the entire syllabus, ensuring comprehensive preparation.
The guide includes previous years' question papers for students to familiarize themselves with the exam's format and difficulty level.
Additionally, it offers subject-specific question banks, allowing students to focus on weak areas and improve their performance.
Study Tips & Tricks: Permutation & Combination on the App
Students of Bank Exams can study Tips & Tricks: Permutation & Combination alongwith tests & analysis from the EduRev app,
which will help them while preparing for their exam. Apart from the Tips & Tricks: Permutation & Combination,
students can also utilize the EduRev App for other study materials such as previous year question papers, syllabus, important questions, etc.
The EduRev App will make your learning easier as you can access it from anywhere you want.
The content of Tips & Tricks: Permutation & Combination is prepared as per the latest Bank Exams syllabus.
|
© EduRev
|
Education Revolution
|
Follow Us
|
Signup on EduRev and stay on top of your study goals
10M+ students crushing their study goals daily