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An airplane travels 80 km in 10 minutes and then flies 100km in 20 minutes the average speed of the plane is?
Wiki User
∙ 14y ago
An airplane travels 80 km in 10 minutes and then flies 100km in 20 minutes the average speed of the plane is?
80 km in 10 minutes = 8 km/min
100km in 20 minutes = 5 km/min
Average speed = total distance traveled ÷ total time
Average speed = 180 km ÷ 30 min = 6 km/minute
Notice the average speed is closer to 5 km/min, because the plane spends twice as much time traveling at the slower speed.
Wiki User
∙ 14y ago
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