b)Customers arrive to this process in the following way: Every 60 seconecustomer arrives to M1:at time 0,60sec , 120sec, 180sec, … Every 120seconecustomer arrives to M2: at time 0, 120sec,240sec, 360sec,…Draw the Gantt chart from time 0 to time 300 sec. Each grid in the followingchart represents 10 sec. You can extend the below chart as needed.c)Under the arrival schedule given in (b), calculate the followingrun-timeparameters:Demand Rate90units/hourFlow Rate90units/hourActual Cycle Time40sec/unitWIP for M11unitsWIP for M20.83unitsWIP for Buffer0.17unitsWIP for M31unitsTotal3unitsM1M2BufferM3