<PRE><B>Question 681390</B>
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Let the digits be these 4 blanks to fill in:
_ _ _ _
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&gt;&gt;...The sum of my hundreds digit and my tens digit is 15...&lt;&lt;
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The only pairs of digits that have sum 15 are {6,9} and {7,8}
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&gt;&gt;...My hundreds digit is one less than my tens digit...&lt;&lt;
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Therefore the pair is {7,8} so the number is

_ &lt;u&gt;7&lt;/u&gt; &lt;u&gt;8&lt;/u&gt; _
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&gt;&gt;...The sum of my thousands digit and my ones digit is 5...&lt;&lt;
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The only pairs of digits that have sum 5 are {0,5}, {1,4} and {2,3}.
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&gt;&gt;...my ones digit is one more than my thousands digit...&lt;&lt;
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Therefore the pair is {2,3} so the number is

&lt;u&gt;2&lt;/u&gt; &lt;u&gt;7&lt;/u&gt; &lt;u&gt;8&lt;/u&gt; &lt;u&gt;3&lt;/u&gt;

Edwin&lt;/pre&gt;</PRE>