Question $3(5\mathrm{.}5$ Points$)$:

A contractor is estimating the bid price to supply and place $2000m^3$ of concrete. The contractor decided to work for $8$ hours per day to complete the activity using crew C$-10.$ Assume that the concrete will cost the contractor AED $200$ per cubic meter. Crew C$-10$ is composed of the following labor and equipment:

$\backslash$table$[[,$Number,$\backslash$table$[[$Cost for each$],[($AED$)]]],[$Foreman$,1,50$ per hour$],[$Labor$,3,35$ per hour$],[$Vibrator$,2,150$ per day$]]$

Assume the following:

The production rate for crew C$-10$ is $400m^3$ of concrete per an $"8-$hour" working day

Contractor's indirect cost $($overheads$)=10\%$ of the total direct cost

Contractor's profit $=20\%$ of the total cost

Considering that the costs of labor and equipment in the table above are direct costs, determine:

The duration required to finish the activity $($in days$)$

$(1\mathrm{.}5$ point$)$

The contractor's total cost for this activity

$(2\mathrm{.}5$ point$)$

The contractor's price for this activity

$(1\mathrm{.}5$ point$)$

$4$