Engineering Board Exam Reviewer · Engineering Management · medium

According to Little's law, if 20 customers per hour arrive and each spends an average of 0.25 hour in the system, the average number in the system is:

  1. 80
  2. 20.25
  3. 0.0125
  4. 5

Answer

D. 5

Solution

L = W = 20(0.25) = 5.

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