Question: Two types of jobs arrive to be processed on the same machine. Type 1 jobs arrive every 80 ± 30 seconds and require 35 ± 20 seconds for processing. TYpe 2 jobs arrive every 100 ± 40 seconds and require 20 ± 15 seconds for processing. Engineering has judged that there is excess capacity on the machine. For a simulation of 8 hours of operation of the system, find X for JYpe 3 jobs that arrive every X± 0.4X seconds and require a time of 30 seconds on the machine so that the average number of jobs waiting to be processed is two or less.