Permutations and combinations is one of the most important topics for JEE. It holds great weightage in both JEE and board examinations.
Probability is the subset of permutation and combination.
Due to a lack of proper guidance and the right mentorship, students often skip this chapter thinking it will be out of their box, or most students try to cram the questions with formulas in the hope of repeating the same questions.
Permutation and combination deal with real-life problems. To prepare for this chapter, you need to think more practically. But no worry.
In this blog, we have picked the best doable strategy of toppers to learn permutation and combination for JEE.
Study What Needs to Study
It is very important to know what to study instead of knowing how to study. Know the difference first. You don’t need to show how much you know. You just have to qualify for the examination to book your seat in the top engineering colleges by qualifying the examination.
Ensures the proper weightage of topics in the permutations and combinations chapter. Note down all topics from questions asked in the examination.
To help you out, we have listed below all the important topics of permutation and combination for JEE.
- Fundamental Principle of Counting.
- rule of sum
- rule of product
- Understanding Factorial Notation
- Understanding Permutation Notation
- Permutation with repetition
- Permutation of alike objects
- Permutation under Restriction
- String Method
- Gap Method
- Non-Consecutive selections
- Understanding Combination Notation
- Combination Under Restriction
- Combination of Alike objects
- The division into Groups (Very Important and also very easy)
- Circular Permutation
- Linear equation with Unit Coefficient
- Divisibility of Numbers ( Very Important)
- Sum of Numbers
- Factors of Natural Numbers
- Exponent of Prime P in N!
- Inclusion-Exclusion Principle
- Derangement Theorem
- Multinomial Theorem
Give Enough Time
Proper allocation of time is necessary to prepare this chapter. It can be varied according to the level of the student’s aptitude. It will take some time for beginners to develop a basic understanding of topics. Don’t try to finish the chapter in one day.
Important tip- Once you develop the proper understanding of any topic, solve fundamental problems based on the topic so that you can relate the next chapters without any difficulty.
If you find any difficulty solving the questions, refer to NCERT Solutions for class 11 maths.
Also Read: HOW CAN AN AVERAGE STUDENT CRACK THE IIT JEE EXAM?
Avoid Backlogs
Don’t create any backlog while studying Permutation and combination. Every topic in this chapter is associated with the previous one. One skip can land you in big confusion, so it is important to avoid backlogs and be regular in your studies.
Learn all the important maths formulas important for IIT-JEE.
In case you lag behind the topic, then try to cover the topic as soon as possible. After completion of each topic, solve at least 40-50 questions to understand the topic properly.
Practice is the Key
Practice topic-wise number of questions to excel in this topic. Once you finish the chapter, start with the foundation book NCERT.
When you go through the foundation book, start practicing the advanced book RD Sharma to strengthen your concept. It is highly recommended to solve Permutation and combination from RD Sharma.
Use RD Sharma’s Solution for class 11 to approach the questions more precisely.
Form Your Own Questions
Sounds weird? It does, but yes, you need to form your own questions. You will amaze to know that forming questions is quite easy than solving the question.
The best way to learn Permutation and Combination is by creating the questions once developing a basic understanding.
It will help you to build critical thinking and mental ability to address complex questions more easily. Imagine the ways of arrangements, rearrangements, permute, etc. believe me, you will see the results within a week.
Frequently Asked Questions
Q1. Are Permutations and Combinations easy?
Ans- it all depends on the time you devoted to the chapter. You will find the chapter hard or easy based on your practice or understanding. Solving Permutation and Combination is like child play; for some, it is a hard nut to crack.
Q2. What are the best ways to learn Permutations and Combinations?
Ans- The following are the best ways to learn Permutations and Combinations.
- Study what you actually ask in the examination.
- Give proper time to the chapter.
- Avoid skipping the topics.
- Practice a sufficient number of the questions.
- Create your own questions.