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    Question

    The ratio of the speeds of Priya and Diya is 6:5

    respectively. Sneha can cover 720 km in 12 hours. If the speed of Diya is 20% less than that of Sneha, how much time will Priya take to cover a distance of 576 km?
    A 10 hrs Correct Answer Incorrect Answer
    B 24 hrs Correct Answer Incorrect Answer
    C 15 hrs Correct Answer Incorrect Answer
    D 12 hrs Correct Answer Incorrect Answer

    Solution

    ATQ,

    Speed of Sneha = 720/12 = 60 km/hr

    So, speed of Diya = 0.8 × 60 = 48 km/hr

    Therefore, speed of Priya = (6/5) × 48 = 57.6 km/hr

    Therefore, required time = 576/57.6 = 10 hours

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