SOLUTION: if a train leaves SF to NY based on 3000 miles travelling 450 mph and train leaves NY to SF travelling 300 mph, where in this country would they cross each other?

Question 951426: if a train leaves SF to NY based on 3000 miles travelling 450 mph and train leaves NY to SF travelling 300 mph, where in this country would they cross each other?
Answer by ankor@dixie-net.com(22740) (Show Source): You can put this solution on YOUR website!
if a train leaves SF to NY based on 3000 miles travelling 450 mph and train leaves NY to SF travelling 300 mph, where in this country would they cross each other?
:
Find their travel time when they meet
t = their travel time
450t + 300t = 3000
750t = 3000
t = 3000/750
t = 4 hrs
Find how far the fast train is from S.F when they meet
4 * 450 = 1800 mi
:
That is about 3/5 the way across the country, I estimate they will meet near Des Moines Iowa
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