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    Question

    A boat travels 480 km downstream in 24 hours. If the

    same boat can go 150 km in still water in 10 hours, then find the time taken to cover 560 km upstream.
    A 35 hrs Correct Answer Incorrect Answer
    B 25 hrs Correct Answer Incorrect Answer
    C 56 hrs Correct Answer Incorrect Answer
    D 45 hrs Correct Answer Incorrect Answer

    Solution

    ATQ, Downstream speed = 480 / 24 = 20 km/hr Speed of boat in still water = 150 / 10 = 15 km/hr Speed of water = 5 km/hr Upstream time to cover 560 km: 560 / 10 = 56 hours

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