a hall is 20m long and 12m wide and 7 m high its ceiling and four walls are to be plastered. find the area to be plastered. find the cost of plaster at the rate of rs 150 per m sq
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1
Length = 20m
Height = 7m
width = 12m
area of 2 walls = 20x7x2
=280m^2
Are of other 2 walls= 12x7x2
= 84x 2
= 168m^2
total area = 448m^2
1m^2= Rs 150
Total money= Rs150x 448
Rs 67200
Answered by
2
Total cost of plaster is 103200 Rs
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