If a 7-11 store is open 24 hours a day, 7 days a week, 365 days a year, then why are there locks on the doors?
must be a government office or something like that which remains open throughout the year but remained closed for vacations.like christmas,new-year, etc.....may be for a day and no more..as nothing has been mentioned in the problem about the number of days when the store was found to be closed............
happy holidays.......
