Answers

2015-01-07T16:49:41+05:30
₹32200 is the cost for cementing
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2015-01-07T16:55:35+05:30
Area of rectangular park=length x breadth=50 x 35=1750
length of outer boundary=50+2x 3.5=50+7=57
breadth of outer boundary=35+2 x 3.5=35+7=42
area of outer rectangle=legthxbreadth=57x42=2394
area of pavement =are of outer rectangle-area of inner rectangle=2394-1750=644
cost of cementing=644/8x400=rs.32200
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