Question

    A boat can cover 130 km in downstream in 10 hours and

    120 km in upstream in 8 hours. Find the speed of boat in still water
    A 12 km/hr Correct Answer Incorrect Answer
    B 16 km/hr Correct Answer Incorrect Answer
    C 14 km/hr Correct Answer Incorrect Answer
    D 17 km/hr Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    Downstream speed of the boat = 130/10 = 13 km/hr Upstream speed of the boat = 120/8 = 15 km/hr Speed of boat in still water = (13 + 15)/2 = 14 km/hr

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