Problem on Trains


  1. A train 300 meters long passes a standing man is 15 seconds. The speed of the train is ?









  1. View Hint View Answer Discuss in Forum

    ∴ Speed = Distance / Time = (300/15)

    Correct Option: D

    ∴ Speed = Distance / Time = (300/15)
    = 20 m/sec
    = (20 x 18) / 5 = 72 km/hr


  1. The length of the train that takes 8 second to pass a pole where it runs at a speed of 36 km/hr is ?









  1. View Hint View Answer Discuss in Forum

    Speed of the train = (36 x 5)/18 = 10 m/sec.
    Distance = (Time x Speed ) = (8 x 10 ) = 80 meters

    Correct Option: D

    Speed of the train = (36 x 5)/18 = 10 m/sec.
    Distance = (Time x Speed ) = (8 x 10 ) = 80 meters
    ∴ Length of the train = 80 meters



  1. A train 280 meters long is moving at a speed of 60 km/hr. The time taken by the train to cross a platform 220 meters long is ?









  1. View Hint View Answer Discuss in Forum

    ∵ Speed of the train = 60 x (5/18) m/sec = 50/3 m/sec
    ∴ Time taken by the train to cross the platform
    = Time taken by it to cover (280 + 220) m

    Correct Option: C

    ∵ Speed of the train = 60 x (5/18) m/sec = 50/3 m/sec
    ∴ Time taken by the train to cross the platform
    = Time taken by it to cover (280 + 220) m
    = (500 x 3/50) sec = 30 sec


  1. A train 250 meter long, running with a speed of 50 km/hr will pass an electric pole in ?









  1. View Hint View Answer Discuss in Forum

    ∵ Speed of the train = 50 x (5/18) = 125/9 m/sec
    ∴ Time taken by the train to pass the pole = 250 x (9/125) = 18 sec

    Correct Option: B

    ∵ Speed of the train = 50 x (5/18) = 125/9 m/sec
    ∴ Time taken by the train to pass the pole = 250 x (9/125) = 18 sec



  1. A speed of 16 meters per second is the same as ?









  1. View Hint View Answer Discuss in Forum

    16 m/sec = 16 x (18/5) = 57.6 km/hr

    Correct Option: B

    16 m/sec = 16 x (18/5) = 57.6 km/hr