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 04-13-2007 #1 Sillysidley   Join Date: Oct 2006 Posts: 822 Problem Determine all the 5-digit numbers that when the first digit and last digit are taken away, the new number is 2/215 of the original? abcde is the number, So 2(10000a+1000b+100c+10d+e)=215(100b+10c+d) So... yeah...help! __________________ .
 04-13-2007 #2 Temperal Guest   Posts: n/a Does it have to be an integer? If not, than there's an infinite number, so I'm guessing it has to be.
 06-06-2007 #3 Scion   Join Date: Nov 2006 Posts: 437 does it count as decimals __________________

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