Ch7. Permutations and Combinations

Course Content

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Fundamental Principle of Counting

NCERT Exercise 7.1

6 Subtopics

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Question – 1

Question – 2

Question – 3

Question – 4

Question – 5

Question – 6

Factorial

Introduction to Factorial

NCERT Exercise – 7.2

5 Subtopics

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Question – 2

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Question – 5

Permutations

What is Permutations?

Permutations in Online Passwords

NCERT Exercise 7.3

9 Subtopics

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Question 1

Question 2

Question 3

Question 4

Question 5

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Question 7

Question 8

Question 9

Permutations with same letters and numbers

NCERT Examples

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Example 14

Example 16

NCERT Exercise 7.3

2 Subtopics

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Question 10

Question 11

Combinations

Permutations versus Combinations

NCERT Exercise 7.4

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Question 2

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Permutations v/s Combinations detailed example

Working with AND – OR in Questions

NCERT Exercise 7.4

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Example 19

NCERT Exercise 7.4

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Miscellaneous Questions from NCERT

NCERT Miscellaneous Exercise

11 Subtopics

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Question 1

Question 2

Question 3

Question 4

Question 5

Question 6

Question 7

Question 8

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Question 10

Question 11

Assignments

PDF of Notes and Assignments

Introduction

Question – 1 (NCERT Example – 20)

Question – 2 (NCERT Example – 21)

Question – 3 (NCERT Example – 22)

Question – 4 (NCERT Example – 23)

Question – 5 (NCERT Example – 24)

Question – 6

Question – 7

Question – 8

Question – 9

Question – 10

Question – 11

Question – 12

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