(a)[2]
Show that the ratio of the costs, in simplest form, is land : materials : wages = 4 : 6 : 5.
(b)[2]
Show that the combined cost of land, materials and wages is $142 500$.
(c(i))[2]
Find the cost of the land.
(c(ii))[1]
Find the cost of the materials.
(d)[3]
Alex takes out a loan of $28 000$ for 6 years at 5.5% per year compound interest. Calculate the amount he repays at the end of the 6 years. Give your answer correct to the nearest dollar.
(e)[2]
When Alex sells the house, he earns a profit of 27% on the $142 500. Calculate the selling price of the house.