a conference hall is 14 m long ,18m wide and 4 m high. there r four windows and one door in it. the door measures 1 m by 2 m and each window measure s 1 m by 1.5 m .how many litres are needed to paint all walls of the hall if one litres is enough for covering 18 m square and what will be the cost of painting if 1 litre costs rupees 225.
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fursh area is not including in wall areA
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