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Chapter 6MathematicsCBSE Class 11

Permutations and Combinations

Permutations and Combinations is Chapter 6 of NCERT Class 11 Mathematics. The chapter covers Introduction, Fundamental Principle of Counting, Permutations, Combinations. Use this public guide to revise the official topic structure before asking Lerno for step-by-step help.

4 topicsChapter 6 of 14
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Topics covered

4 sections
01

Introduction

Introduction
02

Fundamental Principle of Counting

Introduction
03

Permutations

IntroductionPermutations when all the objects are distinctFactorial notationDerivation of the formula for nPrPermutations when all the objects are not distinct objects
04

Combinations

Introduction

Key concepts

IntroductionFundamental Principle of CountingPermutationsCombinationsIntroductionPermutations when all the objects are distinctFactorial notationDerivation of the formula for nPrPermutations when all the objects are not distinct objects

Practice questions

Frequently asked

What is covered in Permutations and Combinations?

Permutations and Combinations is Chapter 6 in NCERT Class 11 Mathematics. The verified chapter structure includes Introduction, Fundamental Principle of Counting, Permutations, Combinations.

How should I revise Permutations and Combinations?

Revise the chapter topic by topic: start with Introduction, Fundamental Principle of Counting, Permutations, then practice questions that mix definitions, examples, and application steps.

Can I use Lerno for Class 11 Mathematics questions?

Yes. Lerno is built for CBSE students and uses NCERT-grounded context so students can ask for explanations, practice prompts, and step-by-step guidance for this chapter.

Study prompts

1

Explain Introduction from Permutations and Combinations and give one NCERT-style example or practice step.

2

Explain Fundamental Principle of Counting from Permutations and Combinations and give one NCERT-style example or practice step.

3

Explain Permutations from Permutations and Combinations and give one NCERT-style example or practice step.

4

Explain Combinations from Permutations and Combinations and give one NCERT-style example or practice step.

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Practice QuestionsChapter-wise NCERT-aligned questionsSolutions GuideStep-by-step approach per topicChapter ExplanationTopic map for structured revision

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