From the given above figure , the minimum number of persons killed in coal mines are 150 in 2007
Hence the minimum number of persons were killed in coal mines = 150 (in 2007)
From the above given figure , we can see that
The maximum number of persons killed in industrial accidents are 1200 in 2006
Hence the maximum number of persons were killed in industrial accidents = 1200 (in 2006)
From the above given figure , the minimum number of persons killed in industrial accidents and coal mines are ( 800 + 200 ) = 1000 in 2009
Hence the minimum number of persons were killed = 1000 (In 2009)
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