500
Mrs. Weeks stayed at the Rockingham Hotel twice. The first time in April, there were 4 rooms by the garden, 3 rooms by the seashore and 1 room by the restaurant available. In May, when she returned, the available rooms were: 2 rooms by the garden, 1 room by the seashore and 1 room by the restaurant. How likely is it that she never got a room by the garden?
What is 1/4?