AP Police Constable 6 Jan 2019 Prelims Solved Paper

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Question : 84 of 200

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In India for making ornamental gold we use 22 carat gold. This is an alloy of

22 parts of gold + 2 parts of copper
19 parts of gold + 3 parts of copper
18 parts of gold + 4 parts of copper
17 parts of gold + 7 parts of copper

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