A Service Counter Employs Two Servers

Multiple Choice

A service counter employs two servers.On average,a server requires 8 minutes to process a customer and service times follow an exponential distribution.Customers arrive at the counter at the rate of 12 per hour according to a Poisson distribution.The service rate per server for this system is

A) 3.75 customers per hour.
B) 7.5 customers per hour.
C) 8 customers per hour.
D) 16 customers per hour.