document.write( "Question 1204437: A car license plate contains three letters followed by four digits. How many different plates can be made if no two consecutive letters can be the same, if the letters I, O and Q cannot be used, and if the number 0 cannot be used? \n" ); document.write( "
Algebra.Com's Answer #840686 by ikleyn(52800)\"\" \"About 
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\n" ); document.write( "A car license plate contains three letters followed by four digits.
\n" ); document.write( "How many different plates can be made if no two consecutive letters can be the same,
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document.write( "In all, 26-3 = 23 letters and 10-1 = 9 digits are used.\r\n" );
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document.write( "Under imposed conditions, the letters give us the factors 23*22*22;\r\n" );
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document.write( "the digits give the factors \"9%5E4\".\r\n" );
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document.write( "So, the final number of all possible plates is  \"23%2A22%2A22%2A9%5E4\" = 73,037,052.    ANSWER\r\n" );
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