Master Permutations, Combinations & Probability Basics (Udemy.com)
Algebra 2: Step by step guide to Master Permutation, Combination & Probability for GMAT, CAT, GRE & Competitive Exams
Created by: Ruchi Chhabra
Last updated August 2024
What you will learn
- Permutations (Fundamental principles of counting, Arrangement in a row, Conditional Permutations, Circular Permutations etc.)
- Combinations (Properties of C (n, r), Basic Problems on Combinations, Combination Problems with restrictions etc.)
- Problems involving both Permutations and Combinations (Simple problems, Highly Skilled Problems)
- Empirical Probability, Theoretical Probability, Coins, Dice, Algebra of Events based on Set Theory
- Sample Space, Mutually Exclusive Events, Odds in favor and Odds against, P(AUB) or P(AUBUB) etc.)
- Conditional Probability and Baye’s Theorem (Multiplication Theorem on Probability, Independent Events etc.)
- The Law of Total Probability and Baye’s Theorem
- GMAT – Past Paper Problems
How it compares
Against the other 127 rated Udemy courses in Math on CourseDuck:
- Rating4.6 out of 5higher than 37% of them
- Reviews86#112 of 128 by number of reviews
- Length10.2 hoursshorter than 55% of them
- Last updatedAugust 2024earlier than 57% of them
Course Description
This course is carefully designed to cover all the fundamental concepts of Permutations, Combinations & Probability.
It has 81 lectures spanning 9+ hours of on-demand videos that are divided into 8 sections along with a special section on GMAT Past Paper problems. Each topic is explained extensively - by solving multiple questions along with the student during the lectures. The students are also provided and encouraged to solve practice questions & quizzes provided at the end of each topic.
Topics covered in the course:
Permutations
Fundamental principles of counting
Arrangement in a row
Permutations of objects not all Distinct
Conditional Permutations
Formation of numbers with different restrictions
Circular Permutations
Challenging Problems on Permutation
Combinations
Properties of C (n, r)
Basic Problems on Combinations
Combination Problems with restrictions
Challenging questions on Combination
Problems involving both Permutations and Combinations
Simple problems
Highly Skilled Problems
Probability
Empirical Probability
Theoretical Probability
Some Important terms of Probability
Coins and Simple Problems on Coins
Dice short Tricks
Algebra of Events based on Set Theory
Sample Space
Mutually Exclusive Events
Probability based on numbers
Odds in favor and Odds against
Probability Based upon Permutation or arrangements
Probability based on combinations or selection
Problems on Balls using combinations
Problems involving P(AUB) or P(AUBUB)
Conditional Probability and Baye’s Theorem
Conditional Probability
Practice Problems on Conditional Probability
Multiplication Theorem on Probability
Practice Problems on Multiplication Theorem
Independent Events
Practice Questions on Addition & multiplication Theorem
The Law of Total Probability and Baye’s Theorem
The law of total Probability
Practice Problems on the Law of Total Probability
Baye’s Theorem
Practice Problems on Baye’s Theorem
GMAT – Past Paper Problems
GMAT Problems (step by step solutions of 20 problems)
Here's what some students say about the course:
"Great! Very good explanations with great care in conveying the principles as well as the practical aspects of the concepts" - Anacleto Correia
"The course is amazing and the level of the questions is very high. Plus the instructor is also a supporting one. She answer each and every question. I am having a great learning till now" - Mayank Ahuja
"Great Course. Very Useful Tricks provided to solve problems quickly" - Kamlesh Jaiswal
With this course you'll also get:
Full lifetime access to the course
Complete support for any question, clarification or difficulty you might face on the topic
Udemy Certificate of Completion available for download
30-day money back guarantee
Feel free to contact me for any questions or clarifications you might have.
I look forward to seeing you in the course! :)
Instructor Details
- 4.6 Rating
86 Reviews
Ruchi Chhabra
Masters in Applied Mathematics, Delhi University
Graduation in Mathematics Honours, Lady Shri Ram College, Delhi University
20+ years of experience in teaching Mathematics. A strong record of countless students who have scored 90% and above in the subject and many who have scored 100%.
Have taught students from classes 9th to 12th (IB AA HL/SL, IB AI HL/SL, IGCSE, ICSE, CBSE boards), competitive exams like GMAT, CAT, SAT, GRE, CPT, CLAT, NTSE, Math Olympiad and students preparing for the entrance exams of reputed schools like Mayo, Rishi Valley, Bishop Cotton, DPS, Birla etc.
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Reviews
By Mohammad Rahman on 10/8/2025
It had some weird explanations
By Vikas Shreekrishna Gupta on 3/8/2025
yes, I think It will prove to be a good match for me for leaerning this combination science.
By Robert Silva on 6/22/2024
What I am enjoying is that it is not rehash of old materials, but the Instructor shows always something interesting. In simple term, it's the difference between a bland dish and one with some spices. I'm really enjoying it.
By Shafquat Rehmani on 8/9/2023
So far this course looks like the kind of course I am looking for.
By Timoleon Tsilikis on 6/6/2023
If there was another part teaching more advanced probabilities (poisson, binomial , density etc.) and have pre written subtitles i would give 5 star but everything in the course is well explained and well put. Exercises are also pretty in depth and methodically placed. Really good job.
By John on 4/3/2023
Very good content-wise. The speed of the videos is too fast. There is a chrome extension that you can create custom speed named "udemy custom speed changer". 0.9 is ideal speed for me! I hope Udemy will implement its own custom speed option
By Dewashish Padhee on 8/26/2022
great great and best lecture on probability permutation and combination.thank you mam
By Mayank Ahuja on 8/9/2020
The course is amazing and the level of the questions is above the Arun Sharma. Plus the instructor is also a supporting one. She answer each and evey question. I am having a great learning till now.
By Kamlesh Jaiswal on 11/20/2018
Great Course. Very Useful Tricks provided to solve problems quickly.
By Anacleto Correia on 11/17/2018
Great! Very good explanations with great care in conveying the principles as well as the practical aspects of the concepts.
Quality Score
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Overall Score : 92 / 100












