document.write( "Question 299130: How many four-digit odd numbers less than 6000 can be formed using the digits 2,4,6,7,8,9? \n" ); document.write( "
Algebra.Com's Answer #215056 by Edwin McCravy(20055)\"\" \"About 
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document.write( "2,4,6,7,8,9\r\n" );
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document.write( "We choose the fourth digit first:  There are 2 ways to select the fourth\r\n" );
document.write( "digit, either 7 or 9, so that the number will be odd.\r\n" );
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document.write( "Next we choose the first digit: There are 2 ways to select the fourth\r\n" );
document.write( "digit, either 2 or 4, so that the number will be less than 6000.\r\n" );
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document.write( "Next we choose the second digit: There are 4 ways to select the second\r\n" );
document.write( "digit, any of the four remaining digits.\r\n" );
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document.write( "Finally we choose the third digit: There are 3 ways to select the second\r\n" );
document.write( "digit as any of the three remaining digits.\r\n" );
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document.write( "So the number of such four-digit numbers is 2*2*4*3=48\r\n" );
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document.write( "Here they all are:\r\n" );
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document.write( "2467  2469  2479  2487  2489  2497\r\n" );
document.write( "2647  2649  2679  2687  2689  2697\r\n" );
document.write( "2749  2769  2789  2847  2849  2867\r\n" );
document.write( "2869  2879  2897  2947  2967  2987\r\n" );
document.write( "4267  4269  4279  4287  4289  4297\r\n" );
document.write( "4627  4629  4679  4687  4689  4697\r\n" );
document.write( "4729  4769  4789  4827  4829  4867\r\n" );
document.write( "4869  4879  4897  4927  4967  4987\r\n" );
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document.write( "Edwin
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