For the building basement shown below, the finish floor elevation is $95$ ft $,$ and the existing

ground elevation before clearing and grubbing is $102$ ft $.$ Top soil is to be removed for $12$ in $.$ The

floor slab thickness is $5$ in $.$ and the structural fill is $3$ in$.$ Calculate the earthwork $($cut$)$ required

for this basement in LCY if the soil is type B $($exclude the top soil$),$ and $1\mathrm{.}5$ extra cut each side is

needed for formwork erection. The load factor is $0\mathrm{.}8.$