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Permutation is the arrangement of items in which the order of selection matters. Combination is selecting items without considering order. For example, in the below diagram, PQ and QP are different in permutation but same in combination. Therefore we have more permutations than combinations. Updated for new NCERT - 2026 Exams Edition. Answers of Chapter 6 Class 11 NCERT Book are provided with detailed step-by-step explanation of each question. Solutions of all questions, examples, miscellaneous of Chapter 6 Class 11 Permuations & Combinations are given for your reference. Check the questions from the Exercises given below, or study the chapter concept wise way. The topics in the chapter include What is a factorial notation? Fundamental Principle of Counting (or the ... permutations and combinations and how to differentiate between them, Definition of the fundamental counting principle and permutations, solving for permutation, solving for permutations with repetition, definition of combinations, solving for the number of different combination, solving for the number of different combinations of multiple events, Algebra II students, with video lessons, examples and step-by-step solutions. Learn the basic counting techniques of permutations and combinations with examples and exercises. Find out how to apply the fundamental principle of counting, the multiplication principle and the addition principle to solve problems involving arrangements and selections of objects.
