length, breadth and height of a room are 5 m, 4 m and 3 m respectively – InterviewSolution

1.	length, breadth and height of a room are 5 m, 4 m and 3 m respectively, Find thecost of white washing the walls of the room and the ceiling at the rate of1.50 per m'rectangular hall has a perimeter 250 m. If the cost of painting the four
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