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Length, breadth & height of a room are in ratio 3:2:1. If the breadth & length are halved, while height is doubled..

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If length, breadth and height of a room are in the ratio 3:2:1. If the breadth and length are halved, while the height is doubled. Then what is the percentage change in the total area of the 4 walls of the room?

posted Dec 14, 2016 by anonymous

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