SOLUTION: A train leaves Toronto for Ottawa, a distance of 545 km, at a speed of 100 km/h. At the same time another train leaves Ottawa heading for Toronto at 80 km/h. How long after departu

Algebra ->  Equations -> SOLUTION: A train leaves Toronto for Ottawa, a distance of 545 km, at a speed of 100 km/h. At the same time another train leaves Ottawa heading for Toronto at 80 km/h. How long after departu      Log On


   

Question 1166650: A train leaves Toronto for Ottawa, a distance of 545 km, at a speed of 100 km/h. At the same time another train leaves Ottawa heading for Toronto at 80 km/h. How long after departure will the trains meet? show your work
Answer by Edwin McCravy(20055) About Me  (Show Source):
You can put this solution on YOUR website!
Their rate of approach is the sum of their speeds, 180 km/h

time = distance/rate

time = 545/180

time = 3.027777778 hours = 3 hours, 1 minute, 40 seconds exactly.  lol

Edwin