Question : A train of length 300 metres crosses a tree in 20 seconds and crosses another train of the same length travelling in the opposite direction in 25 seconds. What is the speed of the second train?

Option 1: 10 m/s

Option 2: 12 m/s

Option 3: 15 m/s

Option 4: 9 m/s

Question : A train of length 360 m crosses an electric pole in 30 s and crosses another train of the same length travelling in the opposite direction in 15 s. What is the speed of the second train?

Option 1: 12 m/s

Option 2: 36 m/s

Option 3: 24 m/s

Option 4: 60 m/s

Question : A train of length 100 metres crosses another train of length 150 metres, running on a parallel track in the opposite direction, in 9 seconds. If the speed of a train having a length of 150 metres is 40 km/h, then what is the speed (in km/h) of the other train?

Option 1: 30

Option 2: 48

Option 3: 50

Option 4: 60