Question

Question 125 (i)

The plan and measurement for a house are given in the figure. The house is surrounded by a path 1 m wide.

Find the cost of paving with bricks at the rate of ₹ 120 per $m^2$.

Answer 1

Area of path = Area of rectangle PQRS - Area of rectangle ADFH
$=PQ\times QR-AD\times DF$
$=(4+2.5+4+1+1)\times (3+3+1+1)-(4+2.5+4)\times (3+3)$
$=12.5\times 8-10.5\times 6$
$=37m^2$
$\therefore$ Cost of paving the path with bricks
= Cost per unit $m^2\times$ Total area of path
$=120\times 37$
= ₹ 4440