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    Question

    Let the speed of the boat in still water be 17 km/h and

    let the speed of the stream be 5 km/h. What is the time taken by the boat to go 110 km downstream?
    A 4.5 hours Correct Answer Incorrect Answer
    B 6 hours Correct Answer Incorrect Answer
    C 5.5 hours Correct Answer Incorrect Answer
    D 5 hours Correct Answer Incorrect Answer

    Solution

    Let the Speed of the boat in still water =B, and the Speed of the Stream =S B =17km/h and S =5km/h Speed of the boat in downstream =17+5=22km/h Time =110/22 =5 hours

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