Question 1197124
The ROUND TRIP total distance, find.


G=160, speed going
R=120, speed returning
T=7, total time traveling
x, unknown time for Going-To

<pre>
WHICH WAY        SPEED       TIME        DISTANCE
Going              G          x          Gx
Return             R          T-x        R(T-x)
Total                         T
</pre>
Distance each way same;
{{{Gx=R(T-x)}}}
-
{{{Gx=RT-Rx}}}
{{{Gx+Rx=RT}}}
{{{(G+R)x=RT}}}

{{{highlight_green(x=RT/(G+R))}}}


Substitute the given values and evaluate x, and then evaluate {{{2*Gx}}}.


{{{x=3}}}
-
{{{2*160*3}}}
{{{320*3}}}
{{{highlight(960)}}}----------full round-trip distance