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      Question

      Sneha rides her bike from town P to town Q at 45 km/h and

      comes back at 55 km/h. Find the average speed of the round trip.
      A 54 km Correct Answer Incorrect Answer
      B 49.5 km Correct Answer Incorrect Answer
      C 65 km Correct Answer Incorrect Answer
      D 78.8 km Correct Answer Incorrect Answer

      Solution

      ATQ,

      Average speed = (2 × 45 × 55) ÷ (45 + 55) = 4950 ÷ 100 = 49.5 km/h

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