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QUESTION
If all the serial numbers of this type have been used, how many sets have already been manufactured?
If all the serial numbers of this type have been used, how many sets have already been manufactured? Sec. Example 3: An automobile manufacturer has three different subcompact cars in the line. Customers selecting one of these cars have a choice of three engine sizes, four body styles, and three color schemes. How many different selections can a customer make?
