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Concepts Of Physics MCQ Edition [Volume 1]PhysicsRest and Motion Kinematics

The distance from Patna to Ranchi is 260 km by air and 320 km by road. An aeroplane requires 30 minutes to travel from Patna to Ranchi, while a delux bus takes 8 hours. Determine the average speed of the plane in km/h.

Options

  1. A130
  2. B520
  3. C260
  4. D640

Correct answer

B. 520

Step-by-step solution

Distance covered by the aeroplane, d = 260 km Time taken by the aeroplane, t = 30 minutes = 1 2 h Average speed of the plane = d t Average speed = 260 1/2 = 520 km/h

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