Sarah uses a mower to cut her rectangular 100-foot by 160-foot lawn. The swath she cuts is 36 inches wide, but she overlaps each cut by 12 inches to make sure that no grass is missed. She walks at the rate of 6000 feet per hour while pushing the mower. Which of the following is closest to the number of hours it will take Sarah to mow her lawn?
1.25
1.33
1.4
1.5
1.6
