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In a flight of 600 km, the speed of the aircraft was slowed down due tobad weather. The average speed of the trip was decreased by 200 km/hrand thus the time of flight increased by 30 minutes. Find the averagespeed of the aircraft originally. |
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Answer» Answer: 1 hr Step-by-step explanation: LET the duration of the FLIGHT be X hours. Then,600/x-600/x + (1/2)= 200 600/x-1200/2x + 1= 200 x(2x + 1) = 3 2x² + x - 3 = 0 (2x + 3)(x - 1) = 0 x = 1 hr. |
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