The floor of cuboidal hall has perimeter equal to 250m and height 6m find the cost of painting its four walls including doors at the rate of RS.8 pet m2 use pie equal to 22/7
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perimeter of hall=2(l+b)=250
CSA of cuboid=2(l+b)h
=250×6=1500
cost =8/2×1500
=4×1500
=60000
CSA of cuboid=2(l+b)h
=250×6=1500
cost =8/2×1500
=4×1500
=60000
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