A wall 15m long ,30 cm wide and 4m high is made of bricks , each measuring (22cm *12.5*7.5cm). if 1/12 of the total volume of the wall consists of mortar, how many bricks are there in the wall
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Step-by-step explanation:
volume of wall = 15 * 30 * 400 = 450 * 400 = 180000 cm^3
volume of 1 brick = 22 * 12.5 * 7.5 = 2062.5 cm^3
volume of wall excluding mortar = 180000 - 1/12 =
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