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Customers 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 form a Poisson process and service times are exponentially distributed, the average waiting time in queue in $min$ is

  1. $3$
  2. $4$
  3. $5$
  4. $6$
in Materials, Manufacturing and Industrial Engineering 1.4k points 4 7 17
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