<PRE><B>Question 639801</B>
&lt;br&gt;&lt;font face=&quot;Tahoma&quot;&gt;This is fairly simple, so let&#39;s set it up right.&lt;br&gt;

{{{Rate=Distance/Time}}}&lt;br&gt;

Distance=238 miles&lt;br&gt;

Time=3.5 hours&lt;br&gt;

{{{R=238/3.5}}}&lt;br&gt;

{{{R=68 mph}}}&lt;br&gt;

Thus, his average rate of speed is 68 miles per hour.&lt;br&gt;

This answer seems realistic in real-world terms.&lt;br&gt;

I hope this helps!  :)&lt;br&gt;

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