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How many brick ( number near to nexthundred ) will be requiredto build a wall 30 m long , 30 cm thick and 5 m high with a provision of 2 doors , each4 m xx 2.5 mand each brick being20 cm xx 16 cm xx 8 cmwhen one-ninth of the wall is filled with lime ? |
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Answer» 13500 bricks |
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