document.write( "Question 87547: How may different 5-digit numbers that are odd and less than 50,000 can be formed using the digits 2,3,4,5,6,7 and 8 without repetition? \n" ); document.write( "
Algebra.Com's Answer #258387 by kapheine(1)\"\" \"About 
You can put this solution on YOUR website!
I disagree with the previous presented solution, because the \"3\" cannot be used both in the first and the last digit, the answer 1080 is too high.. \r
\n" ); document.write( "\n" ); document.write( "This is what I have: \r
\n" ); document.write( "\n" ); document.write( "(for each first digit being) -- (next 3 digits combinations) * (last digit)\r
\n" ); document.write( "\n" ); document.write( "2 -- 6C3 * 3C1\r
\n" ); document.write( "\n" ); document.write( "3 -- (special case) 6C3 * 2C1\r
\n" ); document.write( "\n" ); document.write( "4 -- 6C3 * 3C1 \r
\n" ); document.write( "\n" ); document.write( "add these 3 categories together and we get a total of 960! \n" ); document.write( "
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