Question

Angela and you are painting a room. Angela has 2 1/2 gallons of blue paint and Ryou has half as much white paint. It will take 2 3/4 quarts to cover each wall. If each wall is painted only one color, how many walls will be blue and how many will be white? How much paint will be left over?

Answer 1

Conversion from gallons to quarts

1 gallon = 4 quarts

Now,

Angela has $2 \frac{1}{2}$ gallons = $2\frac{1}{2} *4$ = 10 quarts of blue paint

Ryou has 1/2 of what Angela has = 1/2*10 = 5 quarts of white paint.

Each wall requires $2 \frac{3}{4}$ of paint.
After coloring;
Blue colored walls = (10)/($2 \frac{3}{4}$) = 3 walls with 7/11 quarts of paint remaining.
White colored walls = (5)/($2 \frac{3}{4}$) = 1 wall with 9/11 quarts of paint remaining