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  1. A man misses a bus by 40 minutes if he travels at 30 kmph. If he travels at 40 kmph, then also he misses the bus by 10 minutes. What is the minimum speed required to catch the bus on time?
    2. A.
    48 kmph
    B.
    45 kmph
    C.
    43 kmph
    D.
    44 kmph
    E.
    None of these.

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    Answer : Option B

    Explanation :

    Let the distance to be travelled to catch the bus be x km

    x/30 - x/40 = 30/60 => (4x - 3x)/120 = 1/2 => x = 60 km

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