Question 1126715
The data makes very poor sense.
55 hours less time, 260 miles trucking transport?

<pre>
GOING               r          260/r       260
RETURN             2r          260/(2r)    260
DIFFERENCE                     55
</pre>
{{{260/r-260/(2r)=55}}}


{{{r=2.36}}}


Recheck your given problem description.
2.3 or 2.4 mph is too slow for any trucking travel speed.