ЁЯУв Too many exams? DonтАЩt know which one suits you best? Book Your Free Expert ЁЯСЙ call Now!

    Question

    The ratio of downstream speed to upstream speed of a

    boat is 5:3. If the boat can cover 160 km in still water in 10 hours, then find the difference between the speed of the boat in still water and the speed of the stream.
    A 10 km/h Correct Answer Incorrect Answer
    B 18 km/h Correct Answer Incorrect Answer
    C 24 km/h Correct Answer Incorrect Answer
    D 12 km/h Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    ATQ, Let the speed of the stream be 'y' km/h. Speed of the boat in still water = 160/10 =16 km/h Given, ┬а 3(16+y) = 5(16тИТy) 4 8+3y = 80тИТ5y 48+3y+5y = 80 8y = 32 y = 32/8 = 4 km/h Therefore, required difference = 16тИТ4 = 12 km/h

    Practice Next
    More Boats and streams Questions

    Relevant for Exams:

    ask-question