How many bricks, each of dimensions 20 cm x 12 cm x 9 cm,
will be required to build a wall 12 m long, 72 cm thick, and
4 m high?
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Answer:
16000
Step-by-step explanation:
no of bricks required = volume of wall ÷ volume of one brick
= (1200 × 72 × 400) ÷ (20 × 12 × 9) = 16000
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