Mathematics, 26.03.2021 01:00 zgleasontaekwondo
Safety regulations require that the time between airplane takeoffs (on the same runway) will be at least 2 minutes. When taking off, the run time of an airplane on the runway is 33 seconds. Planes are on average waiting 5 minutes and 15 seconds for take-off. On average there are 18 planes taking off per hour. How many planes are either on the runway or waiting to take off
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