text: Approximately 386.2068966 km/hr.\n\nIf the question was to qualify for the indianapolis 500 race a car must average 350 km/hr for four minutes. if a driver averages 320 km/hr for the first two minutes, what average speed must be achieved for final two minutes in order to qualify? Then the answer would be 380 km/hr.\n\nIf you want me to show you how I solved the problem, feel free to email me.