Subject

    Bank Exam

    Topic

    Probashy Kalyan Bank (Senior officer)-2014

    How long does a train 110 meters long running at the speed of 72 km/h take to cross a bridge 132 meters in length?

    ক)
    9.8 sec
    খ)
    12.1 sec
    গ)
    12.42 sec
    ঘ)
    14.3 sec

    Explanation

    Speed = 72 km/hour = 72*(5/18) m/sec = 20 m/sec Total distance to be covered = 110+132 = 142 meters Time = Distance/Speed

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