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      Question

      A train travels a certain route in 250 minutes at a

      speed of 48 km/h. If the same journey is done by bus in 5 hours, what should be the speed of the bus?
      A 60 km/h Correct Answer Incorrect Answer
      B 54 km/h Correct Answer Incorrect Answer
      C 40 km/h Correct Answer Incorrect Answer
      D 32 km/h Correct Answer Incorrect Answer

      Solution

      ATQ,

      When distance is constant,

      Time ∝ 1/Speed

      5 hours = 5 Γ— 60 = 300 minutes

      (Speed of train) Γ· (Speed of bus) = 300 Γ· 250 = 6:5

      Speed of bus = (5/6) Γ— 48 = 40 km/h

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