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  1. With a uniform speed a car covers the distance in 8 hours. Had the speed been increased by 4 km/hr, the same distance could have been covered in 7 1/2 hours. What is the distance covered?
    2. A.
    420 km
    B.
    480 km
    C.
    640 km
    D.
    Cannot be determined
    E.
    None of these

    View Answer

    Workspace

    View Answer

    Answer : Option B

    Explanation :

    Let the distance be x km. Then,

    x/(7 1/2) - x/8 = 4

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