PROBLEM $1$

$-$Given the following sections

$1+020$

Base for cut $=12m,$ Sideslope for cut $=2$:$1$

Base for fill $=12m,$ Sideslope for fill $=1$:$1$

Required:

$1.$Find the volume of excavation by end area method.

$2.$ Compute the volume of fill by end area.

PROBLEM $2$: Continue the last problem in $5-$level sections and determine the volume of fill and cut.