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      Question

      A trip from Mumbai to Pune takes 4 hours 30 minutes at a

      speed of 60 km/hr. How long (in hours) will it take to complete, if the speed is 15m/sec?
      A 3 ┬╛ Correct Answer Incorrect Answer
      B 5 Correct Answer Incorrect Answer
      C 4 2/3 Correct Answer Incorrect Answer
      D 4 Correct Answer Incorrect Answer

      Solution

      Speed = Distance / Time 60 = Distance / 4(1/2) 60 x 9 / 2 = Distance D = 270 km If speed = 15 m/sec In km/hr's = 15 x 18 / 5 = 54 km/hr S = D / T 54 = 270 / T T = 270 / 54 = 5 hours

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