An automobile emission testing center has six (6) inspectors and tests 50 vehicles per hour. What should the service rate be in order to achieve 90% utilization?
A) Less than 5 vehicles per hour
B) More than 5 but less than or equal to 10 vehicles per hour
C) More than 10 but less than or equal to 15 vehicles per hour
D) More than 15 but less than or equal to 20 vehicles per hour

Question

Quizplus · Accepted Answer

The service rate per inspector to achieve 90% utilization can be calculated as follows: First, find the total service rate needed to handle 50 vehicles per hour, which is given. Since there are 6 inspectors, divide the total vehicles by the number of inspectors to find the service rate per inspector. 50 vehicles / 6 inspectors = 8.33 vehicles per inspector per hour. To achieve 90% utilization, the service rate should be slightly higher than the rate at full utilization, but since the question asks for the range that includes the calculated rate, the correct answer is "More than 5 but less than or equal to 10 vehicles per hour."

An Automobile Emission Testing Center Has Six (6) Inspectors and Tests