Cost of Building Portable Classrooms Suppose a recem tornado destroyed a number of buildings in your town. Your school must accommodate 20% more students until schools in neighbouring communities can be rebuilt. All prefabricated Portables have sold out so new portables will be built. You have been assigned the task of estimating the cost of the building project. The diagrams show the desired measurements for the portables. 2.05 In]: 0.85 m 0.30 m 9.5 In Front Back Side [13 m 0.85 m 0.80 m Your boss has given you these additional details: Each portable accommodates 30 students Each portable has two doors and four windows as shown There will be a 10 cm deep base of gravel under each portable One gallon of paint will cover 400 ft2. Only the inside walls ofthe portables will be painted. Hardware is estimated at 5% and electrical is estimated at 10% of the total material cost for each portable Each portable will require 80 working hours to build . The table shows the items to include in your cost estimate. Use it to calculate the cost to build a portable. Show all calculations and rough work. Description Cost per unit Quantity Total Cost (for 1 (for 1 portable ) portable) Materials for walls, oor, and $6.95/ft2 roof (studs, insulation, drywall, sidin -_ --f_ Doors $110.00 each Windows $90.00 each Subtotal cost - cost $30/h 2. Determine the number of portables required for your school if your school must accommodate 20% more students. 3. Determine the total cost for the project