Until 2005, the UPC bar code had 14 digits (0–9). The first four digits represent the manufacturer, the next nine represent the product, and the last is a check digit. (a) How many different manufacturers could be encoded? Number of manufacturers __________            (b) Per manufacturer, how many different products can be encoded? Number of products    ___________         (c) In 2005, the EAN bar code replaced the UPC bar code, adding a 15th digit. If this new digit is used for product identification, how many different products per manufacturer can be encoded? Number of products    __________

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Until 2005, the UPC bar code had 14 digits (0–9). The first four digits represent the manufacturer, the next nine represent the product, and the last is a check digit.
 
(a) How many different manufacturers could be encoded?
 
Number of manufacturers __________           
 
(b) Per manufacturer, how many different products can be encoded?
 
Number of products    ___________        
 
(c) In 2005, the EAN bar code replaced the UPC bar code, adding a 15th digit. If this new digit is used for product identification, how many different products per manufacturer can be encoded?
 
Number of products    __________    

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