A path 5m wide runs along inside a squre park of side 70m .Find the area of the path .also find the cost of cementing it at the rate of Rs.150 per 1m2.
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Answer:
1300m² , ₹1300
Step-by-step explanation:
side of square (s)= 70m
area of square = s * s
= 70 *70
= 4900m^2
side of interior square = side of square shaped park - 2(width of park )
= 70-(2*5)
= 70- 10
= 60m
Area of interior square = 60*60
= 3600m²
Now, area of path = area of square shaped park- area of interior square
= 4900- 3600
= 1300m². ans.
rate of cementing= ₹1/m²
Total cost of cementing the path= total area of the path * rate of cementing
= 1300 * 1
= ₹1300. ans.
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