Example 1 - Chapter 6 Class 11 Permutations and Combinations

Last updated at July 28, 2026 by

Example 1 - Find number of 4 letter words formed from ROSE - Examples

part 2 - Example 1 - Examples - Serial order wise - Chapter 6 Class 11 Permutations and Combinations

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Transcript

Example 1 Find the number of 4 letter words, with or without meaning, which can be formed out of the letters of the word ROSE, where the repetition of the letters is not allowed . Number of letters which can be filled in different places are Number of ways in which 4 places can be filled = 4 × 3 × 2 × 1 = 24 Hence, number of 4 letter words is 24

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