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Answer:
62500 bricks
Step-by-step explanation:
Each brick is in the form of Cuboid so,
Volume of Cuboid given is = 20 cm×12 cm×8 cm
Volume of Wall is = 120 m³ First we have to convert Volume of wall in cm³
Total no of bricks = 120×100×100×100/12×20×8
⇒ 62500 bricks are required