Question

Grass is to be laid on a rectangular garden 20m long and 18m wide leaving four squares sections in the four corners. If the side of the square measures 2.5m each, find out how much would it cost to lay the grass at Rs 12 per Sq m.

Answer 1

total area of garden on which grass to be laid =l*b
$l \times b \\ 20m \times 18m = 360m {}^{2}$


area of square on which grass not to be laid =l*l
$l \times l \\ 2.5m \times 2.5m = 6.25m { }^{2} \\ 4 \times 6.25m {}^{2} = 25m {}^{2}$
so are on which grass to be laid is 360m²-25m²=335m²
cost of grassing = 335*12=4020rs
rs4020