Question

A wall 24m long, 0.4m thick and 6m high is constructed with the bricks each of dimensions 25cm X 16cm X 10cm. If the mortar occupies 1/10th of the volume of the wall, then find the number of bricks used in constructing the wall.
24*.4*6 * 0.9 / (.25*.16*.10) = 12960 bricks
1500

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