$3\mathrm{.}1.$ The cross section fieldbook below was observed at stakevalue $120.$ Use the observation below to calculate the reduced levels. @SV$120$ HI$\_(1)=\backslash$table$[[\backslash$table$[[$Distance$],[$left$]],$Reading,RL$,$Remarks,$\backslash$table$[[$Distance$],[$R$]],$Reading,RL$,$Remarks$],[$ CL$\_($sv $120),0,574,2114,725,,$ CL$\_($sv$120),1,845,2114,725,],[-15,1,638,,+15,0,945,,,],[$Formation H$=2114,500,,,,,,]]3\mathrm{.}2.$ Draw a cross section on graph sheet below using the information in $4\mathrm{.}1.$ And the following information: $(3)$ Road design width $=12$m$,$ vertical scale $=1$:$100=1$:$1(1)/(2)$ Horizontal scale $=1$:$250$ Side slope Graph paper for cross section drawing