Answer:
0.4
Step-by-step explanation:
λ= number of arrival per unit time
μ= number of customers served per unit time
now we know that
System Utilization = [tex]\frac{\lambda }{\mu }[/tex]
in our case it is given that
λ= 12 per hour
and μ= 30 customers served per hour
therefore system utilization= [tex]\frac{12 }{30 }[/tex]
= 0.4
hence the final answer is 0.4
hope this helps