The mass of 1 liter of gasoline is 0.71 kg. The capacity of the car’s gas tank is 40 liters. The fuel tank is 0.75 filled with gasoline.

| September 16, 2021 | education

The mass of 1 liter of gasoline is 0.71 kg. The capacity of the car’s gas tank is 40 liters. The fuel tank is 0.75 filled with gasoline. How many kilograms of gasoline is in the gas tank?

We find how many liters of gasoline are in the gas tank.
0.75 = 75/100 = 3/4.
That is, the gas tank is 3/4 full.
Find how many liters.
40 ÷ 4 × 3 = 30 liters of gasoline.
This means that the gas tank is filled with 30 liters of gasoline.
Further, it is known that one liter of gasoline is equal to 0.71 kilograms.
We find how many kilograms are 30 liters of gasoline. We write down the solution.
30 × 0.71 = 21.3 kilograms.
This means that the gas tank is filled with 30 liters of gasoline, which is 21.3 kilograms.
Answer: the mass of gasoline is 21.3 kilograms.



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