The document discusses the cost of cleaning tables in a lounge over a hundred year period. It estimates that with 30 tables taking 30 seconds each to clean, the daily cleaning would take 15 minutes. Over a year that's 92 hours, and over a hundred years it's 9,200 hours. At an additional cost of $2,737,500 for those 100 years of cleaning 30 tables daily.

11. I just know it.

46. Weh?!! =p

47. COST
• There are about 30 tables in the lounge.
• Assuming the janitor consumes 30 seconds to
clean a table.
• So that’s about 15 minutes per day
• Or 92 hours per year
• Or 9200 hours in a hundred years
• And an additional cost of 2,737,500 per 1
hundred years.