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Around a rectangular garden of length 10 m and width 5m, a road of 1m wide
laid. Find the cost of cementing the road at rs 200 per m².
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Answer:
length=10m
width=5m
h=1m
CSA of cuboid=2(l+b)h
2(10+5)1=20+10=30msq.
Rs=30.200
=6000
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