A room is 9 m long, 8 m broad and 6.5 m high. Find the cost of whitewashing the walls at rupee 380
per square metre.
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Answer:dimension of room= lbh
=9*8*6.5 = 468.0
dimension of 1 door =2*1.5 = 3.0
dimension of 3 window =3(1*1.5) =4.5
remove the dimension of 3 Windows and 1 door from the room dimension.
468.0 - 3.0*4.5 = 460.5
multiply the cost of whitewashing into total dimension = 460.0*3.80=1749.9
total cost of whitewashing total room = 1749.9
Step-by-step explanation:
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