document.write( "Question 1054845: The digits 1 to 7 are used to create a four-digit code to enter a locked room. How many different codes are possible if the digits may not be repeated and the code must be an even number bigger than 5000? \n" ); document.write( "
Algebra.Com's Answer #670060 by Edwin McCravy(20060)\"\" \"About 
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document.write( "The first digit is the most restrictive, so we\r\n" );
document.write( "choose it first.\r\n" );
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document.write( "We can choose the first digit any of 3 ways, 5, 6, or 7\r\n" );
document.write( "We can choose the second digit any of the remaining 6 ways.\r\n" );
document.write( "We can choose the third digit any of the remaining 5 ways.\r\n" );
document.write( "We can choose the fourth digit any of the remaining 4 ways.\r\n" );
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document.write( "Number of ways = 3*6*5*4 = 360 ways.\r\n" );
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document.write( "Edwin
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