Charla wants to cover a certain rectangular area of her driveway with a picture using chalk. If she completes 2/3 of the area in 1/2 hour how long will it take her to complete the entire picture?
If Charla completes 2/3 of the area in 1/2 hour, then it takes her 1 hour to complete the entire area because 2/3 / (1/2) = 4/3
If it takes her an hour, she will complete the entire area in 1 hour. Answer: \boxed{1}.