A train 60 m long passes a platform 90 m long in 10 seconds. The speed of the train is

10 km/hr 15 km/hr 54 km/hr 48 km/hr

54 km/hr

Speed = \(\frac{ Distance}{ Time}\) Speed = \(\frac{\text{60 + 90}}{ 10}\) Speed = \(\frac{150}{ 10}\) Speed = 15 m/s Speed in km/hr = 15 x \(\frac{18 }{ 5}\) km/hr Speed in km/hr = 54km/hr