How many bricks will be required to construct a wall 20m long , 4m wide and 5m high . If each brick measures 12cm X 8 cm X25cm.
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Step-by-step explanation:
dimensions of wall
length=20m
breadth=4m
height=5m
dimensions of brick
length=12cm=0.12m
breadth=8cm=0.08m
height=25cm=0.25m
let the number og bricks be n
n×0.12×0.08×0.25=20×4×5
n=400/0.0024
n=17
therefore the number of bricks =17
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