Two planes are flying in opposite directions, away from each other, one with the speed of 800 km per hour and the other with the
speed of 840 km per hour. How much farther from each other are the planes getting every hour?
2 answers:
1640 km every hour is the answer
T the average speed of the first plane is 640 km/h, and the speed of the second plane is 640*0.75 = 480 km/h
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