Multiple Choice Questions on A 225 m long train is running at a speed of 30 km hour How much time does it take to cross a man run........... for CDS Exam Preparation

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Multiple Choice Questions

A 225 m long train is running at a speed of 30 km hour How much time does it take to cross a man run...........

Quantitative Aptitude (CDS) Problems on trains
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    A 225 m long train is running at a speed of 30 km/hour. How much time does it take to cross a man running at 3 km/hours in the same direction?

    40 seconds

    Incorrect Answer

    30 seconds

    Correct Answer

    25 seconds

    Incorrect Answer

    15 seconds

    Incorrect Answer
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    Explanation:

    As speed of train = 30 km/hr
    Speed of man = 3 km/hr
    Relative speed = 27 km/hr
    = 27 × (5/18) m/sec = 15/2 m/sec
    Time taken by train to passes the man = 225 / ( 15/2)= 225×2 /15
    = 15 × 2
    = 30 sec

    By: Munesh Kumari
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