Question 1050217
The two travelers catchup problem

<pre>
h=4 hour
r=45 mph
R=90 mph
t, unknown travel time for catchup for traveler at R
d, unknown distance upon catchup
</pre>
BASIC Constant Travel Rate Formula:  {{{D/T=R}}}


<pre>
                  SPEED        TIME       DISTANCE
Mr. Cumming        r           t+h        d
Mrs. Cumming       R           t          d
</pre>
Write the equations for the system, and solve for t and d.