SOLUTION: a freight train leaves a station traveling 60 miles per hour. Thirty minutes later a passenger train leaves the station in the same direction on a parallel track at a speed of 72
Algebra ->
Customizable Word Problem Solvers
-> Travel
-> SOLUTION: a freight train leaves a station traveling 60 miles per hour. Thirty minutes later a passenger train leaves the station in the same direction on a parallel track at a speed of 72
Log On
Question 525597: a freight train leaves a station traveling 60 miles per hour. Thirty minutes later a passenger train leaves the station in the same direction on a parallel track at a speed of 72 miles per hour. How long will it take the passenger train to catch the freight train? Answer by josmiceli(19441) (Show Source):
You can put this solution on YOUR website! The freight train has a head start of mi
Start a stop watch when the passenger train leaves
They will both travel for the same amount of time
until they meet. Call this time
Let = distance passenger train goes
-------------
For passenger train:
(1)
For freight train:
(2)
-----------------
Substitute (1) into (2)
(2)
(2)
(2)
It will take the passenger train
2.5 hrs to catch the freight train
