Permutation and Combination plays a very important role in both phases of Joint Entrance Examination (JEE) i.e. JEE Main and JEE Advanced. About 2-3 questions are always being asked from this chapter in the exam. Engineering aspirants can solve any question if they have basic understanding of the concepts. Here, we are providing you the chapter notes of Permutation and Combination including important concepts and formulae. Some JEE level questions are also given in these notes so that students can get the idea of difficulty level of the paper. Aspirants can study the following topics here:

- Permutation,
- Linear permutation,
- Circular permutation,
- Combination and
- Relationship between permutation and combination

**Important Concepts:**

**Some solved questions are given below:**