Question

    A boat takes one hour to cover a distance of 4 km

    upstream and 6 km downstream, while it takes 13 hours to cover a distance of 72 km upstream and 48 km downstream. Find the speed of the boat (in km/h) in still water.  
    A 12 Correct Answer Incorrect Answer
    B 15 Correct Answer Incorrect Answer
    C 9 Correct Answer Incorrect Answer
    D 10 Correct Answer Incorrect Answer

    Solution

    The correct answer is D

    Practice Next