Answer: 225 square feet
Step-by-step explanation:
If 1 gallon of paint can paint a 300 square foot room to solve how much 3/4th of a gallon can paint lets divide the amount of paint we have and the amount of area 1 gallon paint can cover.
1/4 = 1/4th of a gallon of paint 300/4 = 75 square feet
now we know that 1/4th of a gallon of paint can cover 75 square feet lets multiply everything by 3 so that we can figure out how much 3/4th can cover.
1/4*3 = 3/4th of a gallon 75*3 = 225 square feet
Now we know that 3/4th of a gallon of paint can cover a 225 square feet room.
