Question

A rectangular lawn is 60 m by 40 m and has two roads, each 5m wide running in the middle of it. One parallel to its length and other parallel to the breadth. Find the cost of constructing the
roads at Rs.80/m2

Answer 1

Given length = 60 m
Given breadth = 40 m
Given width of the road = 5m
Now,Road paralle to length,
length = 60m
Breadth = widht of the road = 5m
Area of road = l*b = 60*5 = 300m^2
Now,road parallel to breadth,
length = 40 m
Breadth = 5 m
Area of the road = l*b = 40*5 = 200 m^2
Total area of both roads = 300m^2+200m^2 = 500m^2
Now,cost of constructing 1 m^2 = ₹ 80
cost of constructing 500m^2 = ₹80*500= ₹ 40000

Answer 2

i have solved the question . see the attached picture ...
hope it helped ☺