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In how many ways can the letters of the word ‘ASSASSINATION’ be arranged so that all S’s are together?

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To find: number of ways letters can be arranged such that all S’s are together 

Let all S’s be represented by a single letter Z 

New word is AAINATIONZ 

Number of arrangements = \(\frac{10!}{3!2!2!}\) = 151200

Letters can be arranged in 151200 ways

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