Irises asked Sweet the gymnasium floor after basketball game. This requires her to push a sweeper from one end of the gym into the other repeating pattern till she’s cover 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 go play the entire floor?

1 1/2 hours
1/2 hours
2/3 hours
1 hour

If Irises completes 2/3 of the floor in 1/3 of an hour, then she completes 1/3 of the floor in 1/6 of an hour (1/3 divided by 2).

If it takes her 1/6 of an hour to complete 1/3 of the floor, it will take her 1 hour to complete the entire floor (1/6 multiplied by 6).

Therefore, it will take her 1 hour to sweep the entire gymnasium floor.