Question

5. Two roads of width 3 m run
perpendicular to each other in the
middle of a garden. The garden is of
length 100 m and breadth 80 m . Find
the area of the roads and the cost of
constructing the roads at a cost of
Rs.100 per sq. m.​

Answer 1

Step-by-step explanation:

L = 100m

B = 80m

wide of road = 3m

Area of road =

$= 100 \times 3 + 80 \times 3 - 3 \times 3 \\ = 300 + 240 - 9 \\ = 531 {m}^{2}$

cost per m² for road construction = ₹100

cost of 531m² for road construction = 531*100 = ₹53100