Percentage of Air Conditioned Rooms

One night a certain motel rented 3/4 of its rooms, including 2/3 of its air-conditioned rooms. If 3/5 of its rooms were air-conditioned, what percent of the rooms that were not rented were air-conditioned?

One night a certain motel rented 3/4 of its rooms, including 2/3 of its air-conditioned rooms. If 3/5 of its rooms were air-conditioned, what percent of the rooms that were not rented were air-conditioned?

I came up with 33.3%, but I am not …

Solution explains how to work out what percentage of rooms in a motel are air conditioned in 150 words with calculations included.