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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This makes the number of bricks needed: 20*100*8 = 16000 (which matches the answer from the other tutor
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Answer:
This makes the number of bricks needed: 20*100*8 = 16000 (which matches the answer from the other tutor). P.S. When checking for the divisibility, try all possible combinations. In this problem, the 20cm side of the brick divides into both the 12m and 4m sides of the wall.
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