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Chapter 7 Class 11 Permutations and Combinations

Answers of Chapter 7 Class 11 NCERT Book are provided with detailed step-by-step explanation of each question. Solutions of all questions, examples, miscellaneous of Chapter 7 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 Multiplication Principle)
  • What is permutation?
  • Solving questions using Permuations formula (nPr)
  • Solving permutation questions when objects are repeating
  • What is combinations?
  • Difference between permutations and combinations
  • Solving questions using Combination Property - nCr + nCr-1 = n+1Cr
  • Solving questions using Combinations formula (nCr)
  • Solving questions with both permutations and combinations

 

Click on an exercise or topic below to start.

Serial order wise

  Ex 7.1
  Ex 7.2
  Ex 7.3
  Ex 7.4
  Examples
  Miscellaneous

Concept wise

  Factorial
  Fundamental principal of counting
  Permutation formula
  Permutation- non repeating
  Permutation- repeating
  Combination formula
  Combination
  Both Permuation and combination

What's in it?

Answers of Chapter 7 Class 11 NCERT Book are provided with detailed step-by-step explanation of each question. Solutions of all questions, examples, miscellaneous of Chapter 7 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 Multiplication Principle)
  • What is permutation?
  • Solving questions using Permuations formula (nPr)
  • Solving permutation questions when objects are repeating
  • What is combinations?
  • Difference between permutations and combinations
  • Solving questions using Combination Property - nCr + nCr-1 = n+1Cr
  • Solving questions using Combinations formula (nCr)
  • Solving questions with both permutations and combinations

 

Click on an exercise or topic below to start.