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Each mile of railway track required between 1,760 and 2,000 sleepers. If one average sized tree yields 3 to 5 sleepers for a 3 metre wide broad gauge track, calculate approximately how many trees would have to be cut to lay one mile of track.
Average number of sleepers required per mile
= 1760 + 2000/2
= 1880 sleepers
Average number of sleepers obtained from one tree = 4
Therefore, approximate number of trees to be cut
= 1880/4 = 470 trees
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