Question

29. Find the number of bricks, each measuring 25 cm x 12.5 cm x 7.5 cm, required to construct a wall 24 m long,
20 m high and 0.5 m thick. While the cement and sand mixture occupies 1/20 th of the volume of the wall.

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Answer 1

Answer:

Volume of the wall =

Volume of the cement and the sand mixture

So, Volume of the bricksNow, volume of a single brick

So, total number of bricks required is

6080