Question

Масса бочки с подсолнечным маслом равна 193,2 кг. Масса бочки составляет 5% от массы масла. Масло было продано с 45%-ной наценкой, и получено за него 1160руб. Какова начальная цена 1л масла, если плотность масла равна 920кг на метр кубический? помогитее!!!

Answer 1

1160:(193.2:1.05:0.92*1.45)=4 рубля

Answer 2

To find the initial price of 1 liter of oil, we need to follow a step-by-step approach.

Step 1: Calculate the mass of the oil in the barrel

Given that the mass of the barrel with oil is 193.2 kg and the barrel's mass is 5% of the oil's mass, we can calculate the mass of the oil as follows:

Mass of oil = Mass of barrel / (1 - 5%)

Let's calculate the mass of the oil: Mass of oil = 193.2 kg / (1 - 0.05)

Step 2: Calculate the volume of the oil

To calculate the volume of the oil, we need to know the density of the oil. Given that the density of the oil is 920 kg/m³, we can use the formula:

Volume of oil = Mass of oil / Density of oil

Let's calculate the volume of the oil: Volume of oil = Mass of oil / Density of oil

Step 3: Calculate the initial price of 1 liter of oil

To find the initial price of 1 liter of oil, we need to divide the total price by the volume of the oil. Given that the oil was sold with a 45% markup and the total price was 1160 rubles, we can use the formula:

Initial price of 1 liter of oil = Total price / (Volume of oil * (1 + 45%))

Let's calculate the initial price of 1 liter of oil: Initial price of 1 liter of oil = 1160 rubles / (Volume of oil * (1 + 0.45))

Now, let's calculate the values step by step.

Step 1: Calculate the mass of the oil

Mass of oil = 193.2 kg / (1 - 0.05) Mass of oil = 193.2 kg / 0.95 Mass of oil = 203.37 kg

Step 2: Calculate the volume of the oil

Volume of oil = Mass of oil / Density of oil Volume of oil = 203.37 kg / 920 kg/m³ Volume of oil = 0.221 m³

Step 3: Calculate the initial price of 1 liter of oil

Initial price of 1 liter of oil = 1160 rubles / (Volume of oil * (1 + 0.45)) Initial price of 1 liter of oil = 1160 rubles / (0.221 m³ * 1.45) Initial price of 1 liter of oil = 1160 rubles / 0.320 m³ Initial price of 1 liter of oil = 3625 rubles per liter

Therefore, the initial price of 1 liter of oil is 3625 rubles.

Please note that the calculations provided are based on the information given in the question.