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The chapter 'Permutations and Combinations' is concerned with determining the number of different ways of arranging and selecting objects out of a given number of objects, without actually listing them. These are generally referred to as “PnC”. This chapter is all about logic and “counting”. PnC tests your ability to observe the pattern, your mathematical reasoning, and creativity. From the exam point of view, PnC is one of the important chapters. Concepts of Permutations and combinations are mostly used while solving the problems from probability. The problems of probability are no longer as simple as they used to be in elementary standards. However, if you have a command on Permutations and Combinations, the chapter probability will be a piece of cake for you.
In this chapter, we are going to study the concepts and applications of Permutations and combinations.
Following are the sub-topics that we are going to study:
1. Fundamental Principle of Counting: Addition Rule (OR Rule) and Multiplication Rule (AND Rule)
2. Permutations
3. Combinations
4. Grouping
5. Distribution
6. Derangements
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Last Date to Apply : 15th September | Campuses in Agartala, Aizawl, Ajmer, Aurangabad, Calicut, Imphal, Itanagar, Kohima, Gorakhpur, Patna & Srinagar
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