The average speed of a passenger plane is 480 km / h. This is 20 times the speed of a motor ship and 2 times less
| January 5, 2021 | education
The average speed of a passenger plane is 480 km / h. This is 20 times the speed of a motor ship and 2 times less than the speed of a jet plane. Find the average speed of the ship; jet aircraft.
If the problem statement says that something is more, then this “more” is divided, and “less” – on the contrary, is multiplied.
Let’s calculate how much the average speed of the ship is:
480: 20 = 24 km / h – the average speed of the ship.
Let’s calculate how much the average speed of a jet plane is:
480 * 2 = 960 km / h – the average speed of the jet.
Answer: the average speed of the ship is 24 km / h; the average speed of the jet is 960 km / h.
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