Answer:
3/4 gallon
Step-by-step explanation:
we know that
Chloe uses 1/4 gallon of paint to cover 1/3 of a wall
so
using proportion
Find out how much paint she will need to cover one wall
Let
x ---> paint needed to cover one wall
[tex]\frac{(1/4)}{(1/3)}=\frac{x}{1}\\\\x=\frac{1}{4} :\frac{1}{3}\\\\x=\frac{3}{4}\ gal[/tex]