The mass of one liter of sea water is 1kg 25g. What is the mass of 4 liters of water.

The mass of one liter of water is 1 kg 25 g.

Let’s determine the mass of 4 liters of water.

To do this, you need to make a proportion. We write down the solution.

1 kg 25 g = 1.025 kg.

1 liter of water – 1 kg 25 g.

4 liters of water – x kg.

Let’s define the unknown value of x.

X = 4 × 1.025 = 4.1 kg.

Therefore, the mass of 4 liters of water is 4.1 kilograms.

Answer: the mass of all water is 4.1 kg.