Find the appropiate composite grade for each of the following grade sequences:

 

(a) 2,000 t of 3% grade followed by 1,000 ft of 2% grade, followed by 900 ft of 4% grade.

(b) 2,000 t of 4% grade, followed by 5,000 ft of 3% grade, followed by 3,000 ft of 5% grade.

(c) 4,000 t of 5% grade, followed by 3,000 ft of 3% grade.

 

Alpha Geek

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Status NEW Posted 02 May 2017 10:05 AM My Price 15.00

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