A room is 15m long and 7m wide and 3.5m height find the cost of covering it's wall by a paper of 50cm wide at the rate of 1.50 Ra per metre
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area of four wall=2(l+b)×h
=2×(15+7)×3.5
=44×3.5=154m sq
and then u should proceed with your value given..try to get
=2×(15+7)×3.5
=44×3.5=154m sq
and then u should proceed with your value given..try to get
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