What mass of gasoline can be poured into a container that holds 1 kg of water (water density 1000 kg / m3, gasoline – 800 kg /)?

Initial data m1 (water mass) = 1 kg.

Reference data: according to the condition ρw (water density) = 1000 kg / m ^ 3; ρн (gasoline density) = 800 kg / m ^ 3.

Since both gasoline and water can be poured into the same container, the ratio will be correct: m1 / ρw = m2 / ρn, whence m2 = m1 * ρn / ρw.

Let’s calculate: m2 = 1 * 800/1000 = 0.8 kg or 800 g.

Answer: 800 grams of gasoline can be poured into the container.