The length, breadth, and height of a hall are 5 m, 6 m, and 7 m, respe – InterviewSolution

1.	The length, breadth, and height of a hall are 5 m, 6 m, and 7 m, respectively. The hall has one door ofa 1 m × 0.5 m. Find the cost of painting the walls (only the walls) at the rate of90 per square metre.are
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