Q 1. Customer arrive at a ticket counter at a rate of 50 per hr and tickets are issued
in the order of their arrival. The average time taken for issuing a ticket is 1 min.
Assuming that customer arrivals from a Poisson process and service times and
exponentially distributed, the average waiting time is queue in min is
(A) 3
(B) 4
(C) 5
(D) 6
Answer: (C )
Explanation:
