Question 698829
<pre>
                  total distance       120 km + 120 km
average speed = ------------------  = ----------------- =                     
                    total time             {{{5&24/60}}} h

Since {{{24/60}}} = .4, the above =

240 km
------ = {{{44&4/9}}} km/h 
5.4 hr
 
Edwin</pre>