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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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