document.write( "Question 1164300: An ID at the zoo consists of 2 letters followed by 2 number (0-9). How many unique IDs are possible?
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Algebra.Com's Answer #788614 by ikleyn(52781) $\"\"$ $\"About$

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document.write( "Any one of 26 letters of the English alphabet is in the first position;\r\n" );
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document.write( "any one of 26 letters of the English alphabet is in the second position;\r\n" );
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document.write( "any one of 10 digits is in the third position, and\r\n" );
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document.write( "any one of 10 digits is in the fourth position.\r\n" );
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document.write( "All these choices are independent, giving 26*26*10*10 = 67600  different possible IDs.    ANSWER\r\n" );
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\n" ); document.write( "\n" ); document.write( "To see many other similar Combinatorics problems, look into the lesson\r
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\n" ); document.write( "\n" ); document.write( "Also, you have this free of charge online textbook in ALGEBRA-II in this site\r
\n" ); document.write( "\n" ); document.write( " - ALGEBRA-II - YOUR ONLINE TEXTBOOK.\r
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\n" ); document.write( "\n" ); document.write( "The referred lesson is the part of this online textbook under the topic \"Combinatorics: Combinations and permutations\". \r
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\n" ); document.write( "\n" ); document.write( "Save the link to this textbook together with its description\r
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\n" ); document.write( "\n" ); document.write( "Free of charge online textbook in ALGEBRA-II
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