A project require to construct $75$ concrete beams for a building. The beams are $30cm.$ wide, $50cm.$ deep, and $7\mathrm{.}33m$ long. The forms will be used four times. The formwork will be constructed with plywood and dimension lumber. Use average values in shown table and the unit cost of material and labor as shown in Table.

Q$18)$ The quantity of the require work in SMCA is $?$

Q$19)$ The cost of material per m$3$ based on salvage value $60\%$ except nails and oils is near to $?$