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

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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.

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

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