A rectangular grassy lawn measuring $38 m$ by $25 m$ has been surrounded externally by a $2.5 m$ wide path. Calculate the cost of gravelling the path at the rate of $R s 34.50$ per.sq.metre.

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Solution

Area of lawn $= 38 \times 25$
Dimensions of path
$l = 38 + 2 \times 2.5 = 43 m$
$b = 2.5 m$
So, area to be gravelled $= 43 \times 2.5 \times 2 + 25 \times 2.5 \times 2$
$= 340 m^{2}$
Cost of gravelling $= 340 \times 34.5$ Rs.
$= R s .11730$

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A rectangular grassy lawn measuring 38 m by 25 m has been surrounded externally by a 2.5 m wide path. Calculate the cost of gravelling the path at the rate of Rs 34.50 per.sq.metre.

Area of lawn =38×25Dimensions of pathl=38+2×2.5=43mb=2.5mSo, area to be gravelled =43×2.5×2+25×2.5×2 =340m2Cost of gravelling =340×34.5 Rs. =Rs.11730

A rectangular grassy lawn measuring $38 m$ by $25 m$ has been surrounded externally by a $2.5 m$ wide path. Calculate the cost of gravelling the path at the rate of $R s 34.50$ per.sq.metre.

Area of lawn $= 38 \times 25$
Dimensions of path
$l = 38 + 2 \times 2.5 = 43 m$
$b = 2.5 m$
So, area to be gravelled $= 43 \times 2.5 \times 2 + 25 \times 2.5 \times 2$
$= 340 m^{2}$
Cost of gravelling $= 340 \times 34.5$ Rs.
$= R s .11730$