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Class 11-commerce NCERT Solutions Maths Chapter 6 - Permutations and Combinations

Permutations and Combinations Exercise Ex. 6.1

Solution 1

Solution 2

Solution 3

Solution 4

Solution 5

Solution 6

Permutations and Combinations Exercise Ex. 6.2

Solution 1

Solution 2

3! = 1 × 2 × 3 = 6

4! = 1 × 2 × 3 × 4 = 24

∴ 3! + 4! = 6 + 24 = 30

7! = 1 × 2 × 3 × 4 × 5 × 6 × 7 = 5040

∴ 3! + 4! ≠ 7!

Solution 3

Solution 4

Solution 5

Permutations and Combinations Exercise Ex. 6.3

Solution 1

Solution 2

Solution 3

Solution 4

Solution 5

Solution 6

Solution 7


Solution 8

Solution 9

Solution 10

Solution 11

Permutations and Combinations Exercise Ex. 6.4

Solution 1

Solution 3

Solution 2


Solution 4

Solution 5

Solution 6

Solution 7

Solution 8

Solution 9

Permutations and Combinations Exercise Misc. Ex.

Solution 1

Solution 2

Solution 3


Solution 4

Solution 5

Solution 6

Solution 7

Solution 8

Solution 9

Solution 10

Solution 11

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