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The percentage of metals in a mine of zinc ore is 60%. Now the percentage of silver is 3/4% of metals and the rest is zinc. If the mass of ore extracted from the mine is 8000 kg, the mass (in kg) of zinc is
5174 kg
3587 kg
4764 kg
2125 kg
Mass of zinc ore = 8000 kg Mass of metal = 60% of 8000 = 4800 kg Mass of silver in metal = 3/4 x 4800/100 = 36 kg Mass of zinc = 4800 - 36 = 4764 kg.
Hence, option 3 is the correct answer.
By: Amit Kumar ProfileResourcesReport error
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