In a M/M/1 model, the service rate is 41 per hour, and arrival rate is 11 per hour. Assume that the system charges JD 7.6 per arriving customer. 1. How much money does the system collect per hour as revenue? 00.69091 02.78663 0311.6 083.6 2. Assume that the system has to give a discount for each customer of JD 1.1 per hour based on total waiting time in the queue. What is the profit of the system per hour? 083.49179 083.59016 083.19667 071.5