$2.$ Prepare the estimate of following items using excel sheet. Refer the attached documents for the estimation. a$.$ Plain Cement concrete in foundation b$.$ RCC work in foundation and column c$.$ Reinforcement in foundation and column Weight $10$ mm is $0\mathrm{.}62$ kg$/$m$,12$ mm diameter bar $0\mathrm{.}89$ kg$/$m$,16$ mm diameter bar $1\mathrm{.}58$ kg$/$m and of $20$ mm diameter bar $2\mathrm{.}47$ kg$/$m $3.$ Calculate the quantity of materials required for a wall of $20$ m length $,20$ cm thickness and $3$ m height. The wall is made of first class bricks $19$ cm x $9$ cm x $9$ cm in cement mortar$1$: $8,$ and the plastering done in $10$ mm thickness in $1$: $6.$ plastering is done on both faces of wall.