Multiple Choice Questions on Two persons A and B start from the opposite ends of a 450 km straight track and run to and from betw........... for SSC CGL Exam Preparation

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Multiple Choice Questions

Two persons A and B start from the opposite ends of a 450 km straight track and run to and from betw...........

Quantitative Aptitude (CGL) Time & distance
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    Two persons A and B start from the opposite ends of a 450 km straight track and run to and from between the two ends. The speed of the first person is 25 m/s and the speed of other is 35 m/s. They continue their motion for 10 hours. How many times did they pass each other? 

     

    1
     

    Incorrect Answer

    4
     

    Incorrect Answer

    3
     

    Incorrect Answer

    2

    Correct Answer
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    Explanation:

    First person speed = 25 m/s * 18/5 = 90 kmph
    Second person speed = 35 m/s * 18/5 = 126 kmph
    First person covers 90 * 10 = 900km
    900/450 = 2

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