Subject

    Quantitative Aptitude

    Topic

    Speed & Distance

    How many seconds will a 500 metre long train take to cross a man walking with a speed of 3 km/hr in the direction of the moving train if the speed of the train is 63 km/hr?

    ক)
    25
    খ)
    30
    গ)
    40
    ঘ)
    45

    Explanation

    Speed of the train relative to man = (63 - 3) km/hr = 60 km/hr = (60 x (5/18)) m/sec = (50/3) m/sec. So, Time taken to pass the man = (500 x (3/50)) sec. = 30 sec.

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