Problem on Trains


  1. A train 50 m long passes a platform 100 m long in 10 seconds. The speed of the train in m/sec is ?









  1. View Hint View Answer Discuss in Forum

    Speed of train = distance covered / time.
    = (50 + 100) / 10 m/sec

    Correct Option: D

    Speed of train = distance covered / time.
    = (50 + 100) / 10
    = 15 m/sec.


  1. A train 550 metres long is running with a speed of 55 km per hour. In what time will it pass a signal post ?









  1. View Hint View Answer Discuss in Forum

    Distance covered = 550 meter. = 0.55 km
    Speed of the train = 55 km/hr

    Correct Option: D

    Distance covered = 550 meter. = 0.55 km
    Speed of the train = 55 km/hr

    So time taken = 0.55 / 55 =1/100 hr = (60 x 60 )/100 sec = 36 sec



  1. A train 110 metres in length runs through a station at the rate of 36 km per hour. How long will it take to pass a given point ?









  1. View Hint View Answer Discuss in Forum

    Speed of the train = 36 km/hr = 36 x (5/18) = 10 m/sec
    ∴ Required time = 110/10 = 11 sec

    Correct Option: A

    Speed of the train = 36 km/hr = 36 x (5/18) = 10 m/sec
    ∴ Required time = 110/10 = 11 sec


  1. A train 135 metres long is running with a speed of 54 km per hour. In what time will it pass a telegraph post ?









  1. View Hint View Answer Discuss in Forum

    Distance traveled = length of the train = 135 m
    Speed of the train = 54 Km/hr = 54 x 5/18 = 15 m/s.

    Correct Option: A

    Distance traveled = length of the train = 135 m
    Speed of the train = 54 Km/hr = 54 x 5/18 = 15 m/s.

    Time taken by train = 135 / 15 sec. = 9 sec.



  1. A train 50 meters long passes a platform 100 m long in 10 second. The speed of the train is ?









  1. View Hint View Answer Discuss in Forum

    Distance covered by train in 10 sec = (50 + 100) = 150 m

    Correct Option: C

    Distance covered by train in 10 sec = (50 + 100) = 150 m
    ∴ Speed = 150/10 m/sec = 15 x (18/5) = 54 km/hr