Question $1(50$ Points$)$:

Five work packages are assigned to a concreting crew. Takeoff quantity $($CY$),$ percent waste, and

efficiency factor are estimated for each work package as shown in the table below. Technology

constrained precedence relationships are as: "Foundation" must be completed before executing

"Wall to Elevation" and "Slab"; all "Beams Elevated" must follow pouring "Wall to Elevation".

This crew has crew hourly rate of $$370$ per hour; crew hourly production under normal

circumstances $($efficiency factor $1\mathrm{.}0)$ is $12$ CY per hour. The concrete unit cost is $$30\mathrm{.}90$ per CY

delivered to site. This concreting crew handles one work package at a time. $($CY$=$Cubic Yard$)$

Estimate total labor $($crew$)$ cost for the five work packages $($rounding to $$0\mathrm{.}01).$

Estimate total material cost for the five work packages $($rounding to $$0\mathrm{.}01).$

Estimate total crew hours required to complete the five work packages $($rounding to $0\mathrm{.}1$

hr $).$