Guest Posted April 7, 2008 Report Share Posted April 7, 2008 Can you find a five digit number which when you place a 7 at the beginning to make a new number is five times larger than when you place the 7 at the end? Quote Link to comment Share on other sites More sharing options...
0 Guest Posted April 7, 2008 Report Share Posted April 7, 2008 Can you find a five digit number which when you place a 7 at the beginning to make a new number is five times larger than when you place the 7 at the end? 14285 714285 = 5*142857 Quote Link to comment Share on other sites More sharing options...
0 Guest Posted April 7, 2008 Report Share Posted April 7, 2008 14285 714285 = 5*142857 yep, thats correct Quote Link to comment Share on other sites More sharing options...
0 Guest Posted April 7, 2008 Report Share Posted April 7, 2008 Can you find a five digit number which when you place a 7 at the beginning to make a new number is five times larger than when you place the 7 at the end? 5*(10x+7)=700000+x 50x+35=700000+x 49x=699935 x=699935/49 = 14285 5*142857 = 714285 Quote Link to comment Share on other sites More sharing options...
0 Guest Posted April 7, 2008 Report Share Posted April 7, 2008 yep correct again Quote Link to comment Share on other sites More sharing options...
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Can you find a five digit number which when you place a 7 at the beginning to make a new number is five times larger than when you place the 7 at the end?
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