Question

A single-phase queuing system in which each arriving customer will be served by a three-member crew has four crews with three members each. The number of "servers" is

Answer 1

The number of "servers" is 12.

Step-by-step explanation:

This is because, for a customer to be served by 1 3-member crew, it shows that, there a 3 servers. But, this crew of 3 servers is divided into 4 different group (4-crews), hence, the total number of servers = 12.