Multiple Choice Questions on A person covers half of the distance at 36 kmph and the rest at 24kmph if it takes 5 hours in all Wh........... for CDS Exam Preparation

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Multiple Choice Questions

A person covers half of the distance at 36 kmph and the rest at 24kmph if it takes 5 hours in all Wh...........

Quantitative Aptitude (CDS) Time & distance
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    A person covers half of the distance at 36 kmph and the rest at 24kmph if it takes 5 hours in all. What is the total distance of the entire journey?

    133km
     

    Incorrect Answer

    122km
     


     

    Incorrect Answer

    155km
     

    Incorrect Answer

    144km
     

    Correct Answer
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    Explanation:

    Let the distance be d. Then,
    d/(2/36) + d / (2/24) = 5
    d/36×2 + d/ 24×2 = 5
    d = (5×36×2×24×2) / (48+72)
    d = (5×36×4×24)/ 120
    d = 144km

    By: bhavesh kumar singh
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