115m long and 64m broad town has two roads at right angles one 2m wide

1.	115m long and 64m broad town has two roads at right angles one 2m wide, running parallel to its length and the other 2.5m wide running parallel to its breath. Find the cost of grovelling the road at 760m^2
Answer» Length of a lawn(l) = 115mBreadth of a lawn (b) = 64 m Width of lengthwise road(PQ)= 2.5 mWidth of breadththwise road (AB)= 2 m. Area of road( ABCD)= 115×2= 230 m² Area of road( PQRS)= 64×2.5= 160 m² Area of common path EFGH= 2× 2.5= 5 m² Area of the roads= (Area of road ABCD+ Area of road PQRS) - Area of Road EFGH Area of the roads= 230+160-5 Area of the roads= 390-5= 385 m² Rate of gravel = ₹ 4.60 per m² Cost of gravelling the roads= 385 × 4.60= 1771 Hence, the Cost of gravelling the roads = ₹1771

115m long and 64m broad town has two roads at right angles one 2m wide, running parallel to its length and the other 2.5m wide running parallel to its breath. Find the cost of grovelling the road at 760m^2

Answer»

Length of a lawn(l) = 115mBreadth of a lawn (b) = 64 m

Width of lengthwise road(PQ)= 2.5 mWidth of breadththwise road (AB)= 2 m.

Area of road( ABCD)= 115×2= 230 m²

Area of road( PQRS)= 64×2.5= 160 m²

Area of common path EFGH= 2× 2.5= 5 m²

Area of the roads= (Area of road ABCD+ Area of road PQRS) - Area of Road EFGH

Area of the roads= 230+160-5

Area of the roads= 390-5= 385 m²

Rate of gravel = ₹ 4.60 per m²

Cost of gravelling the roads= 385 × 4.60= 1771

Hence, the Cost of gravelling the roads = ₹1771