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    Subject

    Quantitative Aptitude

    Topic

    Speed & Distance

    Two trains are running on parallel lines in the same direction at a speed of 50 km/hr and 30 km/hr respectively. The faster train crosses a man sitting in the slower in the slower in 18 seconds. What is the length of the faster train?

    ক)
    170 m
    খ)
    150 m
    গ)
    100 m
    ঘ)
    64 m

    Explanation

    The relative speed of the faster train is= (50 - 30) km/hr = 20 km/hr = 20*1000/3600 m/s Now, The faster train travels in 1 second = 20*1000/3600 m The faster train travels in 18 seconds= 20*18*1000/3600 m &nb

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