Solution. Let the speed of the seagull relative to the boat be $x$ (m/s). Then in 12 seconds, it flies $12 x$ (m). The boat covers this distance in 3 seconds, so its speed is $4 x$ (m/s), and the speed of the seagull is $5 x$ (m/s). In the bay, the boat's speed becomes $2 x$ (m/s). In 3 seconds, it travels $6 x$ (m). The speed of the seagull relative to the boat is now $5 x - 2 x = 3 x$ (m/s). Therefore, it will take her 2 seconds to catch up with the boat.

Criteria. If the solution is incorrect - 0 points.

Only the correct answer - 0 points.

If the reasoning is correct and there is a computational error - 3 points. If the solution is correct - 7 points.
1. A seagull is being fed from a moving boat. A piece of bread is thrown down, the seagull takes 3 seconds to pick up the piece from the sea surface, and then it takes 12 seconds to catch up with the boat. Upon entering the bay, the boat reduces its speed by half. How much time will it now take the seagull to catch up with the boat after picking up the piece of bread?

Om vem: 2 seconds.