Question 1056603
speed of p=x
speed of f=x-18
speed*time=distance
Therefore, time=distance/speed
280/x=190/(x-18)
280x-5040=190x by cross-multiplying
90x=5040
x=56 mph Passenger
x-18=38 mph Freight
to go 280 miles at 56 mph=5 hours
to go 190 miles at 38 mph=5 hours