properties used. D18) A room is 14ft long, 12ft broad and 10t high. Fi – InterviewSolution

1.	properties used. D18) A room is 14ft long, 12ft broad and 10t high. Find the cost of coloring its walls, floorand ceiling with black color, to make it a completc haunted house.( GĂ¤iven that-oostper sq ft is Rs 10)
Answer» For this find total surface area =2(lb+bh+hl)=2(1412+1210+1014)=2(168+120+140)=2(428)=856ft^2 henceCost per sq ft is rs 10hence85610=8560Rupees

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