Topics
Permutations and Combinations
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India
Class XI

Introduction to Permutations

Lesson
Practice

Interactive practice questions

Evaluate $5!$5!

Easy
< 1min

Simplify $\frac{7!}{5!}$7!5!​

Easy
< 1min

Find the value of $\nPr{6}{3}$6P3.

Easy
< 1min

Find the value of $\nPr{5}{5}$5P5.

Easy
< 1min
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Outcomes

11.A.PC.1

Fundamental principle of counting. Factorial n. Permutations and combinations, derivation of formulae and their connections, simple applications.

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