Problem on Trains

Problem on Trains

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Aptitude miscellaneous
  1. A train moves with the speed of 180 km/hr, then its speed in meters per second is ?








  1. View Hint View Answer Discuss in Forum

    180 km/hr = 180 x (5/18) = 50 m/sec

    Correct Option: D

    180 km/hr = 180 x (5/18) = 50 m/sec

  1. A train running at a certain speed crosses a stationary engine in 20 seconds. To find out the speed of the train, which of the following information is necessary ?








  1. View Hint View Answer Discuss in Forum

    Since the sum of the length of the train and the length of the engine is needed, so both the lengths must be known.

    Correct Option: D

    Since the sum of the length of the train and the length of the engine is needed, so both the lengths must be known.

  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 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