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A coded message is made using the 26 letters of the alphabet and the 10 digits (oto 9). Letters and digits may be repeated. The

A coded message is made using the 26 letters of the alphabet and the 10 digits (oto 9). Letters and digits may be repeated. The number of coded messages that messages that can be made if every message have the pattern digit- letter- digit is: d. 2250 a. 2600 b.2340 c. 6720

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Numerical Analysis And Optimization NAO-III, Muscat, Oman, January 2014

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