Question 1185855
<pre>

>>>Two runners are running on circular tracks each of which has a circumference
of 1320 feet. The tracks are 100 feet apart...

Does that mean their closest points are 100 feet apart?

>>>...and the runners start opposite each other...

Does that mean they are 100 feet apart, or at corresponding points on the
tracks? 

>>>...and move at the same constant rate of 880 ft/min. 

Are they both running the same direction, clockwise or counterclockwise, or is
one running clockwise and the other counterclockwise?  That will make a
difference.

This is a related rates calculus problem.  We could do it for all possibilities,
but to avoid waste, why not make it totally clear and repost? 

Edwin</pre>