Iris is asked to sweep the gymnasium floor after a basketball game. This requires her to push a sweeper from one end of the gym to the other and repeating the pattern until she has covered the entire floor. She completes 2/3 of the floor in 1/3 of an hour. At this rate, how long will it take her to complete the entire floor?(1 point)

1 answer

Since Iris completes 2/3 of the floor in 1/3 of an hour, she completes 1/3 of the floor in 1/3 * 1/2 = 1/6 of an hour.
Therefore, it will take her 1/6 * 3 = <<1/6*3=1/2>>1/2 of an hour to complete the entire floor. Answer: \boxed{\frac{1}{2}}.