show all your calculations to get full marks. Marks are allocated to information that is shown in your

book not the answer. Round your answers to two decimal place i$.$e$.12\mathrm{.}89177623$ to $12\mathrm{.}89.$

The item taken from the Bill of Quantities have the following information:

Double wall made of inner wall $($concrete blocks$)$ and outside wall $($ concrete bricks$)$

The double wall is $60m$ long and $12m$ high.

The inner wall uses $12\mathrm{.}5$ concrete blocks per square meter $($Allow a wastage of $10\%)$

The outer wall uses $55$ concrete bricks per square meter $($Allow a wastage of $5\%)$

The cost of concrete bricks is $R2000\mathrm{.}00$ per $1000$ bricks

The cost of concrete blocks is $R9500\mathrm{.}00$ per $1000$ blocks

Mortar $($cement$,$ sand and water mix$)$ is estimated at $R35\mathrm{.}00$ per square meter

There are eight workers on site $(4$ bricklayers @ R $168\mathrm{.}75/$day and $4$ laborers @

R$105\mathrm{.}00/$day$)$

The cost plastering and painting the inner wall $($exposed side$)$ is $R\frac{48\mathrm{.}78}{m^2}$

The production rate is estimated at $45m^2$ per day

The construction company work $9$ hours in a day

There is a concrete mixer on site which cost R $105\mathrm{.}00$ per hour.

The total overheads of the project is estimated at R $5000\mathrm{.}00$ per day with this item at $10\%$

The profit is estimated at $20\%$

You are required to calculate the following:

$1\mathrm{.}1\mathrm{.}1$ The material costs in $\frac{R}{m^2}$

$1\mathrm{.}1\mathrm{.}2$ The total cost for plastering and painting the inner wall $($exposed surface$)$

$1\mathrm{.}1\mathrm{.}3$ The Labour costs in in $\frac{R}{m^2}$

$1\mathrm{.}1\mathrm{.}4$ The plant costs.

$1\mathrm{.}1\mathrm{.}5$ The overheads costs in $\frac{R}{m^2}$

$1\mathrm{.}1\mathrm{.}6$ The Net rate in $\frac{R}{m^2}$

$1\mathrm{.}1\mathrm{.}7$ The Gross Rate in $\frac{R}{m^2}$

$1\mathrm{.}1\mathrm{.}8$ The total cost of the item.