Question

On average a car arrives after every 6 minutes at a drive through window of a fast-food restaurant. The restaurant takes an average of 3 minutes to serve a car. Assuming this is a stable process what is the rate at which cars are leaving the drive through window?

Answer 1

The rate at which cars are leaving the drive through window is 1 car every 3 minutes.

Step-by-step explanation:

To find the rate at which cars are leaving the drive through window, we need to calculate the average time it takes for a car to be served, and then calculate the reciprocal of that time.

Since it takes an average of 3 minutes to serve a car, the rate at which cars are leaving the drive through window is 1 car every 3 minutes. Therefore, the rate is 1 car every 3 minutes.