Question

Масса 1 литр бензина 690 гр,а масса 1 литр керосина 790 гр.Найди 1) массу бензина в четырех пол-литровых банках; 2)массу керосина в трех таких же банках.

Answer 1

Calculation of the Mass of Gasoline and Kerosene in Containers

To find the mass of gasoline in four half-liter containers and the mass of kerosene in three similar containers, we need to use the given information about the mass of 1 liter of gasoline and kerosene.

Given: - Mass of 1 liter of gasoline = 690 grams - Mass of 1 liter of kerosene = 790 grams

Calculation 1: Mass of Gasoline in Four Half-Liter Containers

To find the mass of gasoline in four half-liter containers, we need to calculate the mass of 2 liters of gasoline and then divide it by 2.

1. Mass of 2 liters of gasoline = 2 * 690 grams = 1380 grams 2. Mass of gasoline in four half-liter containers = 1380 grams / 2 = 690 grams.

Therefore, the mass of gasoline in four half-liter containers is 690 grams.

Calculation 2: Mass of Kerosene in Three Half-Liter Containers

To find the mass of kerosene in three half-liter containers, we need to calculate the mass of 1.5 liters of kerosene and then divide it by 2.

1. Mass of 1.5 liters of kerosene = 1.5 * 790 grams = 1185 grams 2. Mass of kerosene in three half-liter containers = 1185 grams / 2 = 592.5 grams.

Therefore, the mass of kerosene in three half-liter containers is 592.5 grams.

Please note that the calculations assume that the density of gasoline and kerosene remains constant.