How many ways can the letters a,a,a,a,b,b,b,b,c,c,c (4 a's, 4 b's, 3 c's) be arranged such that 4 consecutive letters are not the same? Thanks
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Originally Posted by FatherMike How many ways can the letters a,a,a,a,b,b,b,b,c,c,c (4 a's, 4 b's, 3 c's) be arranged such that 4 consecutive letters are not the same? There are a total of ways to arrange the string of letters Now count number of ways that all a's or all b's are together. Hint: then substract.
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