Answer:
3/5 gallons of more paint
Explanation:
Given:
Paint required for 282 square feet of area = 2/5 gallon = 0.4 gallons
thus,
by applying the concept of unitary method we have
paint required for 1 square feet of area = (0.4 gallons)/282
therefore,
the paint required for 423 square feet of area = [tex]\frac{0.4}{282}\times 423[/tex] gallons
or
the paint required for 423 square feet of area = 0.6 gallons = [tex]\frac{6}{10}=\frac{3}{5}[/tex] gallons
hence, 3/5 gallons of more paint will be required.
