document.write( "Question 1155313: Radio station call letters in the US consist of three or four letters, of which the first must be either “K” or “W”. Assuming that letters many be repeated, determine the number of radio stations that can be assigned call letters. (Example: The logo/call letters for Iowa State University is KURE.) \n" ); document.write( "

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Radio station call letters in the US consist of three or four letters, of which the first must be either “K” or “W”. Assuming that letters many be repeated, determine the number of radio stations that can be assigned call letters.
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\n" ); document.write( "For 3 letter call signs:
\n" ); document.write( "---> 2*26*26
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\n" ); document.write( "For 4 letter call signs:
\n" ); document.write( "---> 2*26*26*26
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\n" ); document.write( "Add
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\n" ); document.write( "With a few exceptions, stations East of the Mississippi River start with W
\n" ); document.write( "Stations West of it start with K.
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\n" ); document.write( "Stations in Canada start with C.
\n" ); document.write( "You never outgrow your need for useless facts. \n" ); document.write( "

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