The walls and roof of a room are 10 m long,8 m wide and 10 m
in height is to be painted.How much will it cost at Rs.5 per
sq.foot?
A.1600 B.2000
C.2200 D.2400
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Answer Posted / koustav chakraborty
the ans wiil be 2200.cause....
The painted wall including roof is 5 therefore the the equation is (width*long)=(8*10)=80
as for 5 painted wall including roof is (80*5)=400
then the painted hight of the 4 wall is (4*10)=40
as for total painted sq.ft=(400+40)=440
and as for cost per sq.ft the cost will be 440*5=2200
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