A rectangular field is 80 m. long and 60 m wide. In the middle of it there are two paths 5 m wide parallel to the length and breadth. How many stones of 0.5 m square will be taken to make the floor on the way?
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Answer:
Area of the road parallel to the length = 5m x 80m
=400m^2
Area of the road parallel to the breadth = 5m x 60m
= 300m^2
The overlapping area of the road at their cross section
= 5m x 5m
= 25m^2
Total area of the road
= (300+400-25) m^2
=675m^2
No. of stones for paving the road = (675 ÷ 0.5)
= 1350
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