Question

    A boat covers a distance of 65 km downstream in 5 hours

    while it takes 13 hours to cover the same distance upstream. What is the speed of the boat in still water?
    A 8 km/h Correct Answer Incorrect Answer
    B 11 km/h Correct Answer Incorrect Answer
    C 6 km/h Correct Answer Incorrect Answer
    D 9 km/h Correct Answer Incorrect Answer

    Solution

    Speed of Boat in Downstream=65/5=13km/h Speed of Boat in Upstream =65/13=5km/h Speed of boat in still water =(13+5)/2 =9km/h.

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