Question

Как имея два сосуда емкустью 5л и 9л , набрать из водоема ровно 1л воды?

Answer 1

Наливаем 5, переливаем в 9 все 5литров,
наливаем 5, переливаем в 9 до заполнения 9-ти-это 4 литра. В 5тилитровой остался 1 литр

Answer 2

Solving the Water Measurement Problem with Two Vessels

To measure exactly 1 liter of water using two vessels with capacities of 5 liters and 9 liters, we can use a method called the water pouring problem. This problem involves transferring water between the vessels to achieve the desired measurement. Here's how we can solve it:

1. Initial State: - We start with both vessels empty.

2. Step 1: Fill the 9-Liter Vessel: - Fill the 9-liter vessel completely from the water source.

3. Step 2: Pour Water into the 5-Liter Vessel: - Pour water from the 9-liter vessel into the 5-liter vessel until the 5-liter vessel is full. This leaves 4 liters of water in the 9-liter vessel.

4. Step 3: Empty the 5-Liter Vessel: - Empty the 5-liter vessel.

5. Step 4: Pour Water from the 9-Liter Vessel into the 5-Liter Vessel: - Pour the remaining 4 liters of water from the 9-liter vessel into the empty 5-liter vessel.

6. Step 5: Fill the 9-Liter Vessel Again: - Fill the 9-liter vessel completely from the water source.

7. Step 6: Pour Water into the 5-Liter Vessel: - Pour water from the 9-liter vessel into the 5-liter vessel until the 5-liter vessel is full. This will leave exactly 1 liter of water in the 9-liter vessel.

By following these steps, we can measure exactly 1 liter of water using the 5-liter and 9-liter vessels.

This solution is based on the principle of using the difference in capacities of the vessels to achieve the desired measurement.

Conclusion

By following the steps outlined above, it is possible to measure exactly 1 liter of water using the 5-liter and 9-liter vessels.