If there are 52 weeks in a year why only 48 working weeks?

If you work every week of the year, you will work 52 weeks. If you get paid every week, you will receive 52 paychecks. If you get paid every two weeks, you will receive 26 paychecks. If you get paid twice a month, you will receive 24 paychecks. I don't see why you say there are only 48 working weeks. Actually there are 52 weeks and 1 day in a year (unless it's a leap-year - then it's 52 weeks and 2 days). The other 4 weeks are "paid annual holidays" which you don't physically have to work but still get paid for.