Respuesta :

Jared paints 3/4 every 20/60, or 3/4 of a wall = 1/3 of an hour.
Therefore, it will take three times this to make an hour. (3/4)*3 = (1/3)*3
When you multiply, this equals 9/4 = 1. This means that Jared can paint 2 1/4 walls in an hour.