Question

A rectangular lawn 70m by 50 metres has to Cross Road each 5 M running through its middle one parallel to the length and the other parallel to its breadth find the cost of constructing the roads at 20 rupee per metre

Answer 1

area of road 1=70*5m²
=350m²
area of road 2=50*5m²
=250m²
total area of roads=250m²+350m²
=600m²
area of cross section=5*5
=25m²
cost of roads per meter=rs 20
total cost of constructing the road is =20*600
=12000Rs