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The length of a room is double its br...

The length of a room is double its breadth. The cost of colouring the ceiling at Rs 25 per sq. m is Rs 5000 and the cost of painting the four walls at Rs 240 per sq. m is Rs 64800. Find the height of the room. (a) 3.5m       (b) 4m       (c) 4.5m     (d) 5m

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