Question 675237
A van leaves at 11AM traveling at 45mph.  A truck leaves from the same spot at 12PM traveling at 65mph.  At what time will the truck pass the van?
<pre>
When the truck leaves, the van is already 45 miles up the road.  The truck's
approach rate to the van is 65-45 = 20mph.  Since time = distance/rate the
truck will catch up to the van in 45/20 hours or {{{2&1/4}}} or 2 hours and 15
minutes, which will be at 2:15PM.

Edwin</pre>