1. A brick measures 30 cm × 10 cm × How many bricks will be required for a wall 30 m long. 2 m high and thick?
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200 bricks
because area of that wall=30x2=60 m
60 m = 60000 cm
area of a brick= (30 x 10)cm = 300 cm
so no of bricks req = 60000/300=200 bricks
because area of that wall=30x2=60 m
60 m = 60000 cm
area of a brick= (30 x 10)cm = 300 cm
so no of bricks req = 60000/300=200 bricks
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