A train covers `20` m In a second . Convert the speed of train in km/h .

A train goes with a speed of 20 m/s what is the speed of train in km/h?

A train can cross a pole in 45 seconds. The speed of the train is 72 km/h. If the speed of the train is 54 km/h, then how much time will it take to cross pole by the train?

Length of first train is 300 meter and its speed is 25 km/h and length of second train is 200 metre and both the trains are running towards each other. If higher speed train crosses the lower speed train in 45 seconds, then find the speed of second train in km/h.

A train 156 m long passes a telegraph pole in 13 seconds find the speed of the train in km/hr.