In how many ways can the letters of the word CLASSES be arranged if the vowels always come together?
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Since there are two vowels, we can treat them as a single entity. So, we have the letters C, L, S, S, and (AE) as the entities to arrange. The number of ways to arrange these entities is 5!, which is the number of permutations of 5 different entities. Now, Show more…
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