Question 908761
I think the train's conductors are smart.  I'd be hightailing it out of <a href = http://www.theseekerbooks.com/detroit/WrightSchl.html>Detroit</a> as fast as possible!

The first train has a 140km head start.  So what you need to find is 1430-140=1290.  Together they travel 70+90=160 kmh.  1290/160=8.0625 hours.  Add that to the 2 hours head start to get 10 hours 37.5 minutes.