The speed of the aircraft is 860 km / h and the speed of the pedestrian is 215 times less.
| July 19, 2021 | education
The speed of the aircraft is 860 km / h and the speed of the pedestrian is 215 times less. What is the distance the plane will fly during the time it takes a pedestrian to cover 8 km / h.
Let’s find the speed at which the pedestrian is moving.
In the condition of the problem it is said that the speed at which the plane flies is 860 km / h, and the speed of the pedestrian is 215 times less than the speed of the plane, therefore, the speed at which the pedestrian moves is:
860/215 = 4 km / h.
We find how long it takes a pedestrian to cover a distance of 8 km:
8/4 = 2 hours.
We find how far the plane will fly in two hours:
860 * 2 = 1720 km.
Answer: during the time that a pedestrian will walk 8 km, the plane will fly 1720 km.
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