how many bricks each 25 cm long , 10 cm wide and 7.5 cm thick , will be required for a wall 15 m long , 2.5 m high and 1.25 m thick?
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Hey mate here is your answer
volume of one bricks = L x B x H=25 x 10 x 7.5 cube cm = 1875 cube cm
The volume of the well = L x B x H = 15 m x 2.5 1875m x 1.25 m = 1500 cm X 250 cm x 125 cm = 46875000 cube cm.
Therefore the number of bricks = 46875000/1875 =25000
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