Method-soap-rinse-dry and vacuum

Reference no: EM13312901

Classic car care has one worker who washes cars in a four-step method ---- soap, rinse, dry, vacuum. The time to complete each step is exponentially distributed, with mean 9 minutes. Every car goes through every step before another car begins the process. On the average, one car every 45 minutes arrives for a wash job, according to a Poisson process (the interarrival is exponentially distributed). What is the average time a car waits to begin the wash job? What is the average number of cars in the car wash system? What is the average time required to wash a car?

Reference no: EM13312901

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