Question

A rectangular grassy lawn measuring 40m by 25 m is to be surrounded externally by a path at the rate of Rs 2.50 per sq. m.​

Answer 1

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Area of the lawn=(40*25)meter square

= 1000 m square

Width of path = 2 meter New length =40+2*2m

=44m New breadth =25+2*2 m

=29 m

New area=44*29 square meter

=1876 square meter So, area of the path=1876-1000 sq. m

=876sq. m

Cost of levelling= rs 8.25*876

=Rs 7427

Answer 2

$Area =(40×25) \\ = 1000 \: {m}^{2}$

$Width = 2m$

$Length = 40+2×2 =44m$

$Breadth =25+2×2=29m$

$New \: Area = 44×29 \: sq \: m$

$= 1876 \: sq \: m$

$Area \: of \: path = 1876 - 1000 \\ = 876 \: sq \: m$

$Cost \: of \: Levelling \\ =8.25 \times 876 \\ = Rs \: 7,427$