Question

Find the volume of dirt and rock that will be excavated for a subway system. Show all of your working.
In order to make the 50 km of tunnels for the subway, a tunnel boring machine (TBM) will be used that creates rectangular tunnels with sides of 8 m and a height of 6 m. Within the system, there will be 40 stations, each designed in the shape of a rectangular prism measuring 180 m in length, 14 m in height and 20 m in width.

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