You are now in line to get into toll gate. There are 3 gates available. On average it takes 3 seconds for a ticket-seller to process your ticket and allow you pass. The average arrival rate is 40...

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Extracted text: You are now in line to get into toll gate. There are 3 gates available. On average it takes 3 seconds for a ticket-seller to process your ticket and allow you pass. The average arrival rate is 40 veh/minute. Find the average waiting time in queue assuming M/M/N queuing. Select one: O a. 5.32 sec ion O b. 4.32 sec Oc 232 sec O d. 1.32 sec