Lucy's Pancake House, a No-Frills Diner Along a Major Interstate

Essay

Lucy's Pancake House, a no-frills diner along a major interstate, has discovered that if precious employee time is not wasted on frivolous duties such as cleaning work surfaces, properly storing ingredients, and pest control, they can achieve an average output rate of 25 customers per hour. If the diner was designed to accommodate a maximum of 30 customers per hour, what is the utilization?