document.write( "Question 1169589: A four digit integer, WXYZ, in which w, x, y and z each represent a different digit, is form according to the following rules.
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Algebra.Com's Answer #794371 by ikleyn(52875) $\"\"$ $\"About$

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document.write( "Let turn on our common sense.\r\n" );
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document.write( "Z = W - 5 must be non-negative.\r\n" );
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document.write( "It means that W is at least 5.\r\n" );
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document.write( "In turn, it means that Y is at least 4   (since W = Y+1)\r\n" );
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document.write( "And since X = W + Y + Z, it implies that\r\n" );
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document.write( "    W = 5;  Y = 4;  Z = 0;  X = 9.\r\n" );
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document.write( "ANSWER.  The number is  WXYZ = 5940.\r\n" );
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