Peter and John work as cashiers at a Department store in Marawi City that is open 7 days a week. Peter works for 2 days and then has a day off. John works for 4 days and has 2 days off. On Wednesday, November 1, an official Holiday, neither Peter nor John worked. Peter worked on November 2, and John reported to work on November 3.On what days in November, aside from November 1, do both Peter and John have off?
Please, can anyone have the idea on how to solve this problem?
Thank you so much!