Question 724196
They are moving away from each other at the sum of their speeds.  60 + 60 = 120 MPH.<P>
D=r*t  = 120 * 3 = 360 miles.
<P>Hope the solution helped.  Sometimes you need more than a solution.  Contact fcabanski@hotmail.com for online, private tutoring, or personalized problem solving (quick for groups of problems.)