Question

35. Through a rectangular field of length 90 m and breadth 60 m, two roads
are constructed which are parallel to the sides and cut each other at right
angles through the centre of the fields. If the width of each road is 3 m, find
(i) area covered by the roads (ii) the cost of constructing the roads at the
rate of 110 per m.
60m​

Answer 1

Step-by-step explanation:

I) area covered by the roads

= Area of Road 1 + Area of road 2 - Common area between them

= ( 90×3) + (60×3) - (3×3)

= 270 + 180 - 9

= 441 m²

II) cost of construction

= 441 × cost of 1 m²