<PRE><B>Question 301756</B>
when 247 is divided  by 6, 
&lt;pre&gt;&lt;font size = 4 color = &quot;indigo&quot;&gt;&lt;b&gt;
 &lt;u&gt;  41&lt;/u&gt;
6)247
  &lt;u&gt;24&lt;/u&gt; 
    7
    &lt;u&gt;6&lt;/u&gt;
    1 
&lt;/pre&gt;&lt;/font&gt;&lt;/b&gt;
the remainder is  r, 
&lt;pre&gt;&lt;font size = 4 color = &quot;indigo&quot;&gt;&lt;b&gt;
I got a remander of 1, so r is 1
&lt;/pre&gt;&lt;/font&gt;&lt;/b&gt;
and when 247 is divided by 12,
&lt;pre&gt;&lt;font size = 4 color = &quot;indigo&quot;&gt;&lt;b&gt;
  &lt;u&gt;  20&lt;/u&gt;
12)247
   &lt;u&gt;24&lt;/u&gt;
     7
     &lt;u&gt;0&lt;/u&gt;
     7
&lt;/pre&gt;&lt;/font&gt;&lt;/b&gt;
the remainder is s. 
&lt;pre&gt;&lt;font size = 4 color = &quot;indigo&quot;&gt;&lt;b&gt;
I got a remainder of 7, so s is 7
&lt;/pre&gt;&lt;/font&gt;&lt;/b&gt;
what is the value of  r – s ?
&lt;pre&gt;&lt;font size = 4 color = &quot;indigo&quot;&gt;&lt;b&gt;
Since r is 1, and s is 7,  then r - s = 1 - 7 = -6

So the answer is -6, which is choice (a)

Edwin&lt;/pre&gt;</PRE>