SOLUTION: two hours after a freight train leaves the station a passenger train leaves the same station traveling in the same direction at a average speed of 60km per hr. after travelling 4 h

Question 1102405: two hours after a freight train leaves the station a passenger train leaves the same station traveling in the same direction at a average speed of 60km per hr. after travelling 4 hrs the passenger train overtakes the freight train. what was the average speed of the freight train?
Answer by josgarithmetic(39615) (Show Source): You can put this solution on YOUR website!

              SPEED        TIME      DISTANCE

FREIGHT          r          4+2       d

PASSENGER        60         4         d

Both trains reached same distance d when passenger train caught up.

---------speed of freight train.
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