Question

22 A path 2m wide is bult along the
berde border inside a square
park of side 40m Find ag Area
of path (b) the cast of path
planting grass in the remaining
portion of park of the rate of
350 perm​

Answer 1

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$\bf \red{Correct \: question}$

$\bf\scriptsize{A \: path \: of \: 2m \: width \: is \: built \: along \: the \: border \: and \: inside \: a \: square \: garden \: of} \\ \bf\scriptsize{ side \: of \: 40m . \: Find \: a) \: the \: area \: of \: the \: path \: b) the \: cost \: of \: planting \: grass \: in \: the \: remaining \: portion \: of \: the \: garden} \\ \bf \scriptsize{at \: the \: rate \: of \: Rs \: 50 \: per \: m² \: }$

$\bf\red{Answer}$

$\bf \scriptsize{1.) \: \: side \: of \: square \: garden \: = \: 30 \: m.} \\ \bf \scriptsize{ a ^{2} = (30 \: m)^{2} } \\ \bf \scriptsize{ = 900 \: m^{2} }$

$\bf \scriptsize{Area \: of \: the \: square \: garden \: not \: including \: the \: path \: = (28)^{2} = 784 m^{2} }$

$\bf \scriptsize{Area \: of \: path \: = \: Area \: of square \: garden \: including \: the \: path \: - \: Area \: of \: square \: }$

$\bf \scriptsize{= 900 - 784 \: = 116 \: m^{2}}$

$\bf \scriptsize{2.) \: cost \: of \: planting \: grass \: in \: \: 1 \: m \: ^{2}area \: of \: the \: garden \: = Rs \: 40 }$

$\bf \scriptsize{ = cost \: of \: planting \: grass \: 784 \: m ^{2} \: area \: of \: the \: garden \: = 784 \times 40 = \: Rs \: 31360 }$

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Answer 2

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answer is in attachment