Question 1136004
<pre>
                 SPEED     TIME        DISTANCE

GOING              8        d/8          d

RETURN            16        d/16         d

TOTAL                        6
</pre>



Note that time going is TWICE the time returning.  You could simply say time 2x for going and time x for returning.  {{{highlight_green(x+2x=6)}}}.


{{{x=2}}}


ANSWER:
4 hours going to
2 hours returning