document.write( "Question 1206188: In 1912 the U.S. government began issuing licenses to radio stations. Each station was given a unique three-letter \"call sign.\" By
\n" ); document.write( "international agreement, the United States received rights to all call signs beginning with the letters W, N, and K. Radio stations
\n" ); document.write( "in the western United States were given call signs starting with K. Stations in the East were given call signs starting with W. (N
\n" ); document.write( "was reserved for use by the U.S. Navy.)\r
\n" ); document.write( "\n" ); document.write( "(a) How many three-letter call signs (like WGO) start with the letter W?\r
\n" ); document.write( "\n" ); document.write( "(b) How many three-letter call signs starting with W or K were available for U.S radio stations? \n" ); document.write( "
Algebra.Com's Answer #843453 by ikleyn(52781)\"\" \"About 
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document.write( "I assume that 26 capital letters of English alphabet are used/allowed for each of the three positions.\r\n" );
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document.write( "(a)  First of the three positions is letter W.\r\n" );
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document.write( "     Two other positions bring 26 options each, independently.\r\n" );
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document.write( "     So, 26*26 = 676 is the ANSWER for (a).\r\n" );
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document.write( "(b)  Use the same logic.\r\n" );
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document.write( "     26*26 = 676 call signs start with W and 26*26 = 676 other call signs start with K.\r\n" );
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document.write( "     In all, 676 + 676 = 1352 is the ANSWER for (b).\r\n" );
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