Question

The central hall of a school is 22m long and 15.5m wide.A carpet is laid on the floor leaving a strip of 75cm width from the walls uncovered .Find the area of the carpet and the area of the strip uncovered. ​

Answer 1

Answer: The area of the hall is 22m x 15.5m = 341 m^2

The carpet is (22 - 2 * 0.75) * (15.5 - 2 * 0.75)

= (22 - 1.5) * (15.5 - 1.5)

= 20.5 * 14 = 287 m^2

The portion uncovered is 341 m^2 - 287 m^2 = 54 m^2

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Step-by-step explanation: btw i am a very smart 11 year old boy :)