A 480 m long train takes 16 seconds to pass a pole. How long will it take to pass a platform that is 900 m long?

47 seconds 45 seconds 46 seconds 48 seconds

46 seconds

Distance = Speed × Time Speed = \(\frac{DIstance}{Time}\) Speed of train = \(\frac{480}{16}\) = 30 m/sec Time require to cover 900 m long platform = \(\frac{480 + 900}{30}\) = \(\frac{1380}{30}\) = 46 seconds