At many private and some public schools, students are required to wear 12 uniforms. Suppose the boys must wear navy or khaki pants; a short-sleeve or long-sleeve white shirt; and a sweater, vest, or blazer. a. Explain how the Multiplication Principle of Counting can be used to reason that in any group of at least 13 boys, two will be wearing the same type of uniform. b. How big would the group need to be to guarantee that three boys would be wearing the same type of uniform? Bookhla

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