imagine US is a startup that offers high definition 3D prenatal ultrasound for h

Question

imagine US is a startup that offers high definition 3D prenatal ultrasound for high-end customers. The service process includes five activities that are conducted in the sequence described below.(The time required for each activity is shown in parentheses):

Activity 1: Welcome a patient and explain the procedure.(8 minutes)

Activity 2: Pre the patient (e.g., show them to the room, appky ultrasound gel). (5 minutes)

Activity 3: Take images. (14 minutes)

Activity 4: Analysis images.(12 minutes)

Activity 5: Discuss diagnostic with patient.(16 minutes)

At each location there are employees(servers) S1, S2, and S3. The assignment of tasks to servers is the following:

S1 does Activity1.

S2 does Activity 2 and 3.

S3 does Activity 4 and 5.

suppose 2 patients arrive every hour on average. Ignoring any "start of day" or "end of day" effects, what is the utilization of Server 1(as a %) ?

Explanation / Answer

Capacity of Server S1 = 60 /8 = 7.5 persons per hour

Capacity utilised = 2 patients per hour

Capacity utilisation of server S1 = 2 / 7.5 = 0.266 = 26.6%

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