SOLUTION: A passenger train traveling at 90mph leaves Amarillo, Texas 1 hour after a freight train. When will the passenger train pass the freight train which is traveling at 75mph?

Question 432456: A passenger train traveling at 90mph leaves Amarillo, Texas 1 hour after a freight train. When will the passenger train pass the freight train which is traveling at 75mph?
Answer by ewatrrr(24785) (Show Source): You can put this solution on YOUR website!



Hi

Let x and (x+1)represent the times 90mph & 75mph train travel before they meet

Note: D = r*t and distance traveled the same by both trains

  90x = 75(x+1)

  15x = 75

    x = 5hr, time 90mph(passenger train) travels before they meet 



CHECKING our Answer***

  90mph*5hr = 75mph*6hr = 450mi  

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