The central hall of a school is 18m long and 12.5 m wide. A carpet is to be laid on the floor leaving a strip 50 cm wide near the walls, uncovered. Find the area of the carpet and also the uncovered portion?
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Area of central hall = L× b
=18×12.5=225Meters
turn meters into centimeters
225×100=22500
area uncovered by carpet = 50CM.
Therefore area of carpet= 22500 - 50 = 22450
{ convert cm into meters } 22450/100=224.5
area uncovered = { area of central hall - area of carpet } = 225 - 224.5 = 0.5
uncovered portion = 0.5
=18×12.5=225Meters
turn meters into centimeters
225×100=22500
area uncovered by carpet = 50CM.
Therefore area of carpet= 22500 - 50 = 22450
{ convert cm into meters } 22450/100=224.5
area uncovered = { area of central hall - area of carpet } = 225 - 224.5 = 0.5
uncovered portion = 0.5
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