Answer:
The volume of paint that covers the whole car is
gallons or one and a quarter gallons.
Explanation:
Let the volume of paint required to cover whole car be 'x'.
Given:
Volume of paint to cover one-fifth of a car = one-fourth of a gallon.
We use unitary method to determine the volume of paint required.
∵ One-fifth of a car requires paint =

∴ Whole volume of car requires paint =


Therefore, the volume of paint that covers the whole car is
gallons or one and a quarter gallons.