CC Car Wash specializes in car cleaning services. The servicesoffered by the company, the exact service time, and the resourcesneeded for each of them are described in the table following:
Service | Description | Processing Time | Resource |
A. Wash | Exterior car washing and drying | 10 minutes | 1 automated washing machine |
B. Wax | Exterior car waxing | 15 minutes | 1 automated waxing machine |
C. Wheel Cleaning | Detailed cleaning of all wheels | 16 minutes | 1 employee |
D. Interior Cleaning | Detailed cleaning inside the car | 20 minutes | 1 employee |
The company offers the following packages to theircustomers:
• Package 1: Includes only car wash (service A).
• Package 2: Includes car wash and waxing (services A andB).
• Package 3: Car wash, waxing, and wheel cleaning (services A,B, and C).
• Package 4: All four services (A, B, C, and D).
Customers of CC Car Wash visit the station at a constant rate(you can ignore any effects of variability) of 50 customers perday. Of these customers, 30 percent buy Package 1, 30 percent buyPackage 2, 15 percent buy Package 3, and 25 percent buy Package 4.The mix does not change over the course of the day. The storeoperates 10 hours a day.
f. What is the implied utilization rate for the employee atservice C (wheel cleaning)? Round your answer to the nearest wholenumber and ignore the percentage sign. For example, if your answeris 0.45 or 45%, fill in 45; if your answer is 0.76 or 76%, fill in76.
Your answer is .
