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 / vijay
hey guys, a room as 4 walls. so it should have length and breadth because its a two dimension. l*b = 10*8=80, 80*4 walls = 320, then one roof: same 10*8=80. finally 4 walls and 1 roof = 320+80=400 now it cost rs.5, so 400*5=2000. 2000 is answer.
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