The length breadth height of a room are 5m,4m,3m respectively . find the cost of whitewashing the wall and the ceiling @ ®750 per m²
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L=5m
b=4m
h=3m
lsa+l*b=2*(l+b)*h+l*b
=2*(5+4)*3+5*4
=2*9*3+20
=54+20
=74
cost of white washing 1m=rs 750
cost of 74m=750*74=55500rs
b=4m
h=3m
lsa+l*b=2*(l+b)*h+l*b
=2*(5+4)*3+5*4
=2*9*3+20
=54+20
=74
cost of white washing 1m=rs 750
cost of 74m=750*74=55500rs
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