he perimeter of the floor of a hall is300 m and its height is 6 m. Fin – InterviewSolution

1.	he perimeter of the floor of a hall is300 m and its height is 6 m. Find the cost ofthe painting the four walls at the rate of15 per square metre.
Answer» Perimeter = 300m2(l+b)= 300=> l+b= 150 mheight = 6mlateral surface area = 2(l+b)h= 2 1506 m²= 3006 m²= 1800m²

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