SSC CGL Exam > SSC CGL Videos > SSC CGL Tier 2 - Study Material, Online Tests, Previous Year > Solved Examples: Permutations and Combinations
Solved Examples: Permutations and Combinations Video Lecture | SSC CGL Tier 2 - Study Material, Online Tests, Previous Year
|
1365 videos|1312 docs|1010 tests
|
FAQs on Solved Examples: Permutations and Combinations Video Lecture - SSC CGL Tier 2 - Study Material, Online Tests, Previous Year
| 1. What is the difference between permutations and combinations? |  |
Ans. Permutations and combinations are both ways of counting the number of possible outcomes in a given scenario. The main difference lies in whether the order of the elements matters. In permutations, the order matters, while in combinations, the order does not matter. For example, when arranging a group of people in a line, the order in which they stand is important, so it is a permutation. On the other hand, if we are selecting a group of people to form a committee, the order in which they are selected does not matter, so it is a combination.
| 2. How do I calculate permutations? | |
Ans. To calculate permutations, you need to determine the number of ways to arrange a set of objects in a specific order. The formula for calculating permutations is nPr = n! / (n - r)!, where n represents the total number of objects, and r represents the number of objects being arranged in a specific order. The exclamation mark denotes the factorial function, which means multiplying a number by all the positive integers less than it. For example, if you have 5 objects and want to arrange 3 of them, the permutation would be 5P3 = 5! / (5 - 3)! = 5! / 2! = 60.
| 3. How do I calculate combinations? | |
Ans. Combinations are used to calculate the number of ways to select objects from a set without regard to their order. The formula for calculating combinations is nCr = n! / (r!(n - r)!), where n represents the total number of objects, and r represents the number of objects being selected. Again, the exclamation mark denotes the factorial function. For example, if you have 5 objects and want to select 3 of them, the combination would be 5C3 = 5! / (3!(5 - 3)!) = 5! / (3!2!) = 10.
| 4. Can permutations and combinations be applied in real-life situations? | |
Ans. Yes, permutations and combinations have numerous applications in real-life situations. For example, when scheduling events, you may need to consider various permutations of time slots and activities. In sports, the order in which teams are placed in a tournament bracket can be calculated using permutations. Combinations are used in probability theory to calculate the likelihood of drawing specific cards from a deck or winning in a lottery. These concepts are also used in computer science, cryptography, and data analysis.
| 5. Are there any shortcuts or tricks to solve permutations and combinations problems? | |
Ans. While there may not be shortcuts to solve all permutations and combinations problems, there are certain techniques that can simplify calculations. For example, if there are identical objects in a set, you can divide the total number of permutations or combinations by the factorial of the number of identical objects to avoid overcounting. Additionally, understanding the concept of symmetry can help reduce the number of cases to consider. Practice and familiarity with the formulas and concepts can also speed up problem-solving.
About this Video
|
4.75/5 Rating |
|
Dec 23, 2024 Last updated |
Video Description: Solved Examples: Permutations and Combinations for SSC CGL 2024 is part of SSC CGL Tier 2 - Study Material, Online Tests, Previous Year preparation.
The notes and questions for Solved Examples: Permutations and Combinations have been prepared according to the SSC CGL exam syllabus.
Information about Solved Examples: Permutations and Combinations covers all important topics for SSC CGL 2024 Exam.
Find important definitions, questions, notes, meanings, examples, exercises and tests below for Solved Examples: Permutations and Combinations.
Introduction of Solved Examples: Permutations and Combinations in English is available as part of our SSC CGL Tier 2 - Study Material, Online Tests, Previous Year for SSC CGL & Solved Examples: Permutations and Combinations in
Hindi for SSC CGL Tier 2 - Study Material, Online Tests, Previous Year course. Download more important topics related with notes, lectures and mock test series for
SSC CGL Exam by signing up for free.
Description
Video Lecture & Questions for Solved Examples: Permutations and Combinations Video Lecture | SSC CGL Tier 2 - Study Material, Online Tests, Previous Year - SSC CGL full syllabus preparation | Free video for SSC CGL exam to prepare for SSC CGL Tier 2 - Study Material, Online Tests, Previous Year.
Information about Solved Examples: Permutations and Combinations
Here you can find the meaning of Solved Examples: Permutations and Combinations defined & explained in the simplest way possible.
Besides explaining types of Solved Examples: Permutations and Combinations theory, EduRev gives you an ample number of questions to practice Solved Examples: Permutations and Combinations tests,
examples and also practice SSC CGL tests.
|
1365 videos|1312 docs|1010 tests
|
|
Explore Courses for SSC CGL exam
|
|
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
Related Searches
video lectures
,Solved Examples: Permutations and Combinations Video Lecture | SSC CGL Tier 2 - Study Material
,Online Tests
,Previous Year
,Solved Examples: Permutations and Combinations Video Lecture | SSC CGL Tier 2 - Study Material
,Online Tests
,Previous Year
,Extra Questions
,Free
,Viva Questions
,MCQs
,Sample Paper
,shortcuts and tricks
,study material
,past year papers
,Summary
,Semester Notes
,Solved Examples: Permutations and Combinations Video Lecture | SSC CGL Tier 2 - Study Material
,Previous Year
,Important questions
,practice quizzes
,ppt
,Objective type Questions
,Online Tests
,Exam
,mock tests for examination
,Previous Year Questions with Solutions
;
Study Solved Examples: Permutations and Combinations on the App
Students of SSC CGL can study Solved Examples: Permutations and Combinations alongwith tests & analysis from the EduRev app,
which will help them while preparing for their exam. Apart from the Solved Examples: Permutations and Combinations,
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 Solved Examples: Permutations and Combinations is prepared as per the latest SSC CGL syllabus.
|
© EduRev
|
Education Revolution
|
|
Signup to see your scores
go up within 7 days!
Access 1000+ FREE Docs, Videos and Tests
Takes less than 10 seconds to signup