Find the area of four walls of the room whose length breadth and height are 8m 6m 5m respectively. Ignoring the door, windows and other openings,find the cost of white washing the walls at the rate of 7 rupees per sq.m.
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Step-by-step explanation:
formula of rectangle-
l x bx h
8 X6 X5
240
240 x 7=1680
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