Question

Martin uses 5/8 of a gallon of paint to cover 4/5 of a wall. What is the unit rate at which Martin paints in walls per gallon?

1 7/25of a wall per gallon
1 3/32 walls per gallon
32/25 walls per gallon
1/2 walls per gallon

Answer 1

The unit rate is 32/25 Walls per gallons.

Explanation:

Gallons of paint used by Martin = 5/8 gallons

Portion of wall Martin wants to paint in pints = 4/5 wall.

Rate at which Martin paints the wall: Rate = Portion of wall covered/Paints Used.

Rate = 4/5 Gallons/5/8 Gallons = 32/25 Wall Gallons.