Assume that floors are polished on consecutive instead of nonconsecutive days but that all other scheduling policies are unchanged. For how many of the six days can it be determined both whether plants are watered and whether floors are polished?
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When assumptions about floor polishing change, it often becomes easier to determine the schedule for both floor polishing and watering.
If floors are polished on consecutive days, then it is possible to determine exactly which days both plants are watered and floors are polished, as the schedule is clearer. Thus, it is possible to determine this for all six days of the week.