80 liters of water was poured into an aquarium 83cm long, 25cm wide and 42cm high.

80 liters of water was poured into an aquarium 83cm long, 25cm wide and 42cm high. Find the volume of the empty part of the aquarium?

It is known that 1 liter of water contains 1000 cm3 of water. Knowing this, you can calculate the amount of unfilled volume of the aquarium with water. To do this, we first find out the volume of the aquarium filled with water, in cm3:

80 * 1000 = 80,000 (cm3).

Now let’s calculate the volume of the aquarium itself.

83 * 25 * 42 = 87 150 (cm3).

Using the data obtained, we find the volume of the part of the aquarium that is not filled with water.

87 150 – 80 000 = 7 150 (cm3).

Answer: 7 150 cm3 is the volume of the empty part of the aquarium.