Question 1035059
Try putting all values into variables.  You already know the travel rates formula.


<pre>
TRAIN        RATE        TIME      DISTANCE
T             r          t+h        d
G             R           t         d

{{{system(r=50,R=60,h=1/3)}}}
Solve for t and d.
</pre>


USE THE TRAVEL RATE FORMULA TO MAKE A SYSTEM OF EQUATIONS.
{{{system(r(t+h)=d,Rt=d)}}}


SOLVE FOR t AND d.  You should find formulas for each.