A house, for cooling purposes, consists of two zones: the attic area zone A and the living area zone B. The living area is cooled by an air conditioning unit that removes 30,000 Btu/hr. The heat capacity of zone B is 1/3 oF per thousand Btu. The time constant for heat transfer between zone A and the outside is 3 hr, between zone B and the outside is 4 hr, and between the two zones is 6 hr. If the outside temperature stays at 110 oF, how warm does it eventually get in the attic zone A