Pamela measured the middle school and made a scale drawing. The scale of the drawing was 1 inch : 5 feet. If the gym is 24 inches long in the drawing, how long is the actual gym?
Since the scale of the drawing is 1 inch : 5 feet, this means that 1 inch in the drawing corresponds to 5 feet in reality.
If the gym is drawn as 24 inches long in the drawing, this means that its actual length is 24 * 5 = <<24*5=120>>120 feet. Answer: \boxed{120}.