Speed of first train=60km/h

Speed of second train=80km/h

Total distance between both the station=300km

Now using the concept of relative speed=(Speed of first train+ Speed of second train) =60+80

=140km/h

( here since both the trains are moving in the opposite direction so relative speed is calculated by taking the sum of both the speeds)

Time=Distance/Speed

=300/140

=2.143hr or 2hr 8 mins

• This reply was modified 4 months ago by  Homi Koylada.