A rectangular field of 60 metres length and 40 metres width is to be surrounded by a road 5 metre wide if the cost of making one square metre road is rs. 500, what would be the cost of making the entire road ?
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Step-by-step explanation:
length = 60m
breadth=40m
area = l×b =60m×40m
=2400m2
So ,by adding the length of road to length of the rectangle we get,
length+5m+5m=60m+10m
=70m
adding with breadth we get,
breadth +5m+5m=40m+10m
=50m
finding the area of the big rectangle formed(side+width of road)
=70m×50m
=3500m2
Area of road= area of big rectangle - area of small rectangle
=3500m2 - 2400m2
=1100m2
cost of making road 1m2 =₹500
cost of making road 1100m2 = ₹(1100×500)
=₹5,50,000
Therefore,the cost of making the entire road is ₹5,50,000.
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