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[" 4.A school has a hall which is "22m" ...

[" 4.A school has a hall which is "22m" long and "15.5m" broad.A carpet is laid inside the hall "],[" leaving all around a margin of "75cm" from the walls.Find the area of the carpet and the "],[" area of the strip left uncovered.If the width of the carpet is "82cm" ,find its cost at the rate of "],[760" per "m" ."]

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A school has a hall which is 22 m long and 15.5 m broad. A carpet is laid inside the hall leaving all around a margin of 75 cm from the walls. Find the area of the carpet and the area of the strip left uncovered. If the width of the carpet is 82 cm, find its cost at the rate of rs.60 per m.

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