📢 Too many exams? Don’t know which one suits you best? Book Your Free Expert 👉 call Now!


    âš¡ Month End Offer - Flat 52% Off On All Courses! Enroll Now âš¡
    00:00:00 AM Left

    Question

    The ratio between the speeds of Y and Z is 8 : 7. When Y

    boosts his speed by 12.5%, he covers 432 km in 6 hours. Find the time taken by Z to travel 168 km.
    A 3 hrs Correct Answer Incorrect Answer
    B 4 hrs Correct Answer Incorrect Answer
    C 8 hrs Correct Answer Incorrect Answer
    D 6 hrs Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    Increased speed of Y = (432/6) = 72 km/hr
    So, actual speed of Y = 72 ÷ 1.125 = 64 km/hr
    Or, speed of Z = 64 × (7/8) = 56 km/hr
    Therefore, required time = (168/56) = 3 hours

    Practice Next

    Relevant for Exams:

    ask-question