Two goods train each 300 m long, are running in opposite directions on parallel tracks. Their speeds are 52 km/hr and 48 km/hr respectively. Find the time taken by the slower train to pass the driver of the faster one.

12 sec

21.6 sec

26 sec

30 sec

Relative speed = (52 + 48 )km/hr = (100 x 5/18)m/sec =(250/9) m/sec Total Distance covered = (300 + 300) m = 600 m Required time = (600 x 9 /250)sec = 108/5 sec = 21.6 sec

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