Betty is designing a simulation for Alex's bake shop. The store has two cashiers who take orders
Question:
Betty is designing a simulation for Alex's bake shop. The store has two cashiers who take orders from customers who come in off the street. There is a single queue for all the customers and the person at the front of the line goes to whichever cashier is free first. Suppose the store opens at 9am, and the first customer enters after 2 minutes at 9:02am. The simulated inter-arrival times of the next four customers are 2, 3, 2 and 1 minutes, respectively. The simulated service time of those five customers are 8, 7, 2, 4 and 3 minutes, respectively.
a) How many customers are in the store at 9:08am?
b) What time does the 5th customer finish service?
c) Suppose the 6th customer arrives at 9:20am, after the 5th customer has left the store (it was empty before the 6th customer arrived). The 7th customer arrives 3 minutes later, but we do not know the 6th customer's service time. What time does the 7th customer start service?
Introduction To Materials Management
ISBN: 978-9386873248
8th edition
Authors: Arnold J. R. Tony, Gatewood Ann K., M. Clive Lloyd N. Chapman Stephen