Question

Find the cost required to carpet a hall 8m by 5.5m if a rectangular section 2m by 1.5m is taken out to provide for the fireplace and the carpet costs $52.50 per m^2

Answer 1

total area of hall
$= 8 \times 5.5 \\ = 44 {m}^{2}$
now area of rectangular section to be cut =
$2 \times 1.5 \\ = 3 {m}^{2}$
area of carpet req =
$44 - 3 \\ = 41 {m}^{2}$
so cost of carpet
$= 41 \times 52.5 \\ = rs.2152.5$