Limpopo Limited plans to manufacture a new energy efficient outdoor light and the following information is available:

The estimated sales for the year $2024$ are $5000$ units at R$30$ each. The estimated costs for the $2024$ year comprise of direct materials and direct labour of R$9$ and R$2$ per unit respectively. Fixed factory overheads are R$20000$ per annum, fixed administrative expenses are R$23000$ per annum and selling expenses are calculated at $20\%$ of selling price per unit.

Required:

$1\mathrm{.}1$ Calculate the breakeven quantity $($round off to nearest unit$).$

$1\mathrm{.}2$ Calculate the breakeven value.

$1\mathrm{.}3$ Calculate the breakeven value using the marginal income ratio.

$1\mathrm{.}4$ Calculate the selling price per unit if the profit per unit is R$2$ using the sales quantity of $5000$ units provided information above.

$1\mathrm{.}5$ Calculate the new breakeven quantity and value if the selling price is decreased by$10\%($round off to nearest unit$).$