A rectangle has sides 20 m and 30 m A 2 meter300 m 2 wide gallery is made around the rectangle What ...........

Quantitative Aptitude (CDS) Mensuration 2D

A rectangle has sides 20 m and 30 m. A 2-meter300 m^2 wide gallery is made around the rectangle

What is the area of the gallery?

300 m^2

200 m^2

216 m^2

350 m^2

Area of rectangle is= 20×30

=600 m^2

Length of outer field is =30+4=34 m

Width of outer field is=20+4=24 m

Area of new field= 34×24

=816 m^2

Gallery area is=816-600

=216 m^2

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