Butch washes half of his kitchen floor in 1/4 hour. His kitchen floor is 120 square feet. What is an equivalent unit rate?

A. 30 square feet per hour
B. 60 square feet per hour
C. 120 square feet per hour
D. 240 square feet per hour ​

Respuesta :

D
He washes 60 sq ft in 1/4 of an hour. Multiply 60 by 4 and you get 240 per hour