Question

A jug of milk holds 4 quarts. How many litres of milk does the jug hold?

Answer 1

We first find the relation between US liquid quart and litre. The measurement quart is not so common in measurement units. We find the litre value as $0.946$ being equal to 1 US liquid quart.
We use the unitary system to find the volume of the 4 US liquid quart in litre by multiplying 4 with $0.946$.

Complete step by step solution:
We need to convert the volume by changing its unit from US liquid quart to litres.
We find the relation between US liquid quart and litres where we have 1 US liquid quart equal to $0.946$ litres.
We already have that in the unitary system. The unitary method is a method in which we find the value of a unit and then the value of a required number of units. The unitary method is also used to find the value of a single unit from a given multiple.
We need the equivalent volume of 4 US liquid quart.
We multiply 4 with $0.946$ to get the volume which will be equal to 4 US liquid quart.
Therefore, 4 US liquid quart is equal to $4\times 0.946=3.784$ litres. (approx.)
4 US liquid quart is equivalent to $3.784$ litres.

Note: The liquid quart is a unit of measurement for volume and fluid capacity in both the US customary units and the British Imperial systems of measurement. This unit is not used in the normal or common measurement units.