Question

A rectangular lawn 75 m by 60 m has two roa
parallel to length and the other parallel to breadth. Find the cost of gravelling the roads at 14.50
per sq. metre.


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Answer 1

Answer:

2358 rupees

Step-by-step explanation:

Length of the rectangular lawn=75m

Breadth of the lawn=60m

Width of the road=4m

Area of the road(ABCD) parallel to the length of the lawn = 75m×4m

=300m2

Area of the road(EFGH) parallel to the breadth of the lawn = 60m×4m

=240m2

Area of the common area in both ABCD and EFGH = 4m×4m

=16m2

Total area of both the rectangular roads = 300+240−16

=524m2

Cost of gravelling the roads per m2= Rs.4.50

Cost of gravelling the roads for 524m2

=4.50×524

=2358

Cost of gravelling the road is Rs.2358