3 (It is recommended that you look at the supplement to this chapter before answering this question.)

A hotel has two wings, an east wing and a west wing. Each wing has four ‘room-service housekeepers’

working 7-hour shifts to service the rooms each day. The east wing has 40 standard rooms, 12 deluxe rooms and 5 suites. The west wing has 50 standard rooms and 10 deluxe rooms. The standard times for servicing rooms are as follows: standard rooms 20 standard minutes (SMs), deluxe rooms 25 SMs and suites 40 SMs. In addition, an allowance of 5 SMs per room is given for any miscellaneous jobs such as collecting extra items for the room or dealing with customer requests. The east-wing housekeepers believe that they have the more demanding job. Are they right?