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  1. A takes 2 hours more than B to walk D km. If A doubles his speed then he can make it in 1 hour less than B. How much time does B require for walking D km?
    2. A.
    D/2 km
    B.
    3hrs
    C.
    4hrs
    D.
    2D/3hrs

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    Workspace

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    Answer : Option C

    Explanation :

    Suppose B takes x hours to walk d km 


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