A 60 m long ship is moving at a speed of 30 km/hr alongside a river shore. A 210 m long goods train is running on the shore at a speed of 78 km/hr. If the train is coming towards the ship, in how much time will the train cross a man who is sitting on the ship?

A 60 m long ship is moving at a speed of 30 km/hr alongside a river shore. A 210 m long goods train is running on the shore at a speed of 78 km/hr. If the train is coming towards the ship, in how much time will the train cross a man who is sitting on the ship?
1). 5 sec
2). 7 sec
3). 9 sec
4). 11 sec

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