For example, Cabinetmaker $1$ estimates it will take $50$ hours to complete all the oak cabinets and $60$ hours to complete all the cherry cabinets. However, Cabinetmaker $1$ only has $40$ hours available for the final finishing operation. Thus, Cabinetmaker $1$ can only complete $40/50=0\mathrm{.}80,$ or $80\%,$ of the oak cabinets if it worked only on oak cabinets. Similarly, Cabinetmaker $1$ can only complete $40/60=0\mathrm{.}67,$ or $67\%,$ of the cherry cabinets if it worked only on cherry cabinets.