Time and Work

If n amount of time (days, hours, etc. ) are required to complete a work, then work per unit time = 1/n.

Then percentage efficiency = (100/n) %.

Combined efficiency for more than one people = sum of efficiency percentage.

If x amount of work is completed in 1 day, then 1 amount of work is performed in 1/x days. 1 means complete.

Efficiency * Time = Work.