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Curated by: Khan Academy India - English (21 videos)
So far, we've learnt how to deal with words with 2 letters repeating. In this video, we'll look at ways to arrange letters of a word with more tha 2 repetitions. We start by refreshing what we've learnt about arrangements where a particular letter repeats. Through arranging letters of the words KHANACADEMY, REPETITION, and MISSISSIPPI we learn how to deal with words where there are multiple letters repeating multiple times! Courses on Khan Academy are always 100% free. Start practicing—and saving your progress—now! (https://www.khanacademy.org/math/ncert-class-11/xea4762213f311c5e:permutations-and-combinations-ncert-new/xea4762213f311c5e:untitled-900/e/permutations_1) Timestamps: 00:00 Refresher on approach to solve for repetitions 01:19 Rearranging letters of KHANACADEMY 02:30 Rearranging letters of REPETITION 03:58 Rearranging letters of MISSISSIPPI 05:16 Practicing dealing with lengthy cancellations Khan Academy India is a nonprofit organization with the mission of providing a free, world-class education for anyone, anywhere. We have videos and exercises that have been translated into multiple Indian languages, and 15 million people around the globe learn on Khan Academy every month. Support Us: https://india.khanacademy.org/donate Created by Ashish Gupta