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Unformatted text preview: 928000 c. that start with X, if letters can be repeated. 267= 8031810176 d. that start with X, if letters cannot be repeated. 25*24*23*22*21*20*19 = 2422728000 e. that start and end with X, if letters can be repeated: 266= 308915776 f. that start with the letters BO (in that order), if letters can be repeated: 266= 308915776 g. that start and end with the letters BO(in that order), if letters can be repeated: 264=456976 h. that start or end with the letters BO(in that order), if letters can be repeated: 266+266 = 617831552 6.2 2. Assume that each student has a last name. Since there are more people in the class then letters in the alphabet, at least two of the 26 letters in the alphabet has to repeat. 4. a. If the first four balls that are...
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 Fall '08
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