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      Question

      A car covered a journey in 10 hours with an average

      speed of 80km/hr. If it covers initial 30% of distance in 6 hours. Find the speed of car while covering remaining distance.ย 
      A 120 Correct Answer Incorrect Answer
      B 100 Correct Answer Incorrect Answer
      C 140 Correct Answer Incorrect Answer
      D 150 Correct Answer Incorrect Answer
      E None of the above Correct Answer Incorrect Answer

      Solution

      Total distance covered by car = 10ร—80 = 800 km. Initial 30% distance covered in 6 hours. So, the remaining distance covered in 4hrs. Let speed while covering remaining distance be v; v ร— 4 = 70% of 800 => v = 140 km/hr

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