Question

    Bike 'P' runs at (6/5) the speed of Bike 'Q'. Both bikes

    started from the same location and reached the same place at the same time. If Bike 'P' paused for 75 minutes on the way, and each bike travelled 300 km, what is the speed difference between Bike 'P' and Bike 'Q'?
    A 12 km/h Correct Answer Incorrect Answer
    B 18 km/h Correct Answer Incorrect Answer
    C 10 km/h Correct Answer Incorrect Answer
    D 24 km/h Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    ATQ,

    Let speed of Bike Q be ‘a’ km/h. Then speed of Bike P would be ‘6a/5’ km/h. Since both reached at the same time, (300/a) – (300/(6a/5)) = 75/60 On solving, we get a = 50 km/h Required difference = (6a/5) – a = a/5 = 50/5 = 10 km/h

    Practice Next

    Relevant for Exams: