Question
A rectangular park $35\ m$ long $18\ m$ wide is to be covered with grass, leaving $2.5\ m$ uncovered all around it. Find the area to be laid with grass.

Answer

Lenght of the park $=35 m$
Breath of the park $=18 m$



Area of the park $=(3218) m ^2$
Lenght of the park with glass $=(355)=13 m$
Breadth of the park with glass $=(18-5) m =13 m$
Area of park with glass $=(30 \times 13) m ^2=390 m^2$
Area of the path without glass = Area of the whole park area of the park with glass $=630 m^2-390 m^2=240 m^2$
Hence, area of the park to be laid with glass $=240 m^2$

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