Find the cost of painting the four walls of aroom at the rate of Rs per square metre, if itsperimeter is 100 m and height 9 m. About the author Reagan

[tex]\Huge \underline{\mathcal \pink{A}\purple{\frak{nSwer}}}[/tex] [tex]Area \: of \: four \: walls = 2(l + b)h[/tex] [tex]= 100 \: \times \: 9[/tex] [tex] = 900[/tex] [tex]Cost \: of \: painting[/tex] [tex]= rate \: \times area[/tex] [tex] = Rs \: 9 \times \: 900[/tex] [tex] 8100 \: rs[/tex] Reply

[tex]\Huge \underline{\mathcal \pink{A}\purple{\frak{nSwer}}}[/tex]

[tex]Area \: of \: four \: walls = 2(l + b)h[/tex]

[tex]= 100 \: \times \: 9[/tex]

[tex] = 900[/tex]

[tex]Cost \: of \: painting[/tex]

[tex]= rate \: \times area[/tex]

[tex] = Rs \: 9 \times \: 900[/tex]

[tex] 8100 \: rs[/tex]

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