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      Question

      A bus initially traveling at a speed of 55 km/hr

      increased its speed by 12 km/hr after β€˜t’ hours and then traveled for (t + 6) hours more. If the bus covered 737 km in the last (t + 6) hours, find the distance covered in the first β€˜t’ hours.
      A 220 km Correct Answer Incorrect Answer
      B 200 km Correct Answer Incorrect Answer
      C 275 km Correct Answer Incorrect Answer
      D 250 km Correct Answer Incorrect Answer
      E None of these Correct Answer Incorrect Answer

      Solution

      ATQ, (55 + 12) Γ— (t + 6) = 744 Or, 67 Γ— (t + 6) = 744 Or, t + 6 = 11 Or, t = 5 Therefore, required distance traveled = 55 Γ— 5 = 275 km

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