Trosper Tire Company has decided to hire a new mechanic to handle all tire changes for customers ordering a new set of tires. Two mechanics are available for the job. One mechanic has limited experience and can be hired for $7 per hour. It is expected that this mechanic can service an average of three customers per hour. A mechanic with several years of experience is also being considered for the job. This mechanic can service an average of four customers per hour, but must be paid $10 per hour. Assume that customers arrive at the Trosper garage at the rate of two per hour. a) Compute waiting-line operating characteristics for each mechanic b) If the company assigns a customer waiting cost of $15 per hour, which mechanic provides the lower operating cost? Note: this is the cost of customer waiting in the system.
Answers
Answer:
mechanic can service an average of three customers per hour. A mechanic with several years of experience is also being considered for the job. This mechanic can service an average of four customers per hour, but must be paid $10 per hour. Assume that customers arrive at the Trosper garage at the rate of two per hour. a) Compute waiting-line operating characteristics for each mechanic b) If the company assigns a customer waiting cost of $15 per hour, which mechanic provides the lower operating cost? Note: this is the cost of customer waiting in the system
Explanation:
When we are dealing with two numbers that are expressed in units, if the units are the same, we can add or subtract normally. However, if the units are different, then we can add or subtract only if the units can be converted into the same units.