In an alloy of German Silver the ratio of copper to zinc was 17 : 7, w – McqOptions

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1.	In an alloy of German Silver the ratio of copper to zinc was 17 : 7, while that of nickel to zinc was 4 : 3. The ratio of copper to zinc to nickel in the alloy was:
A.	17 : 21 : 4
B.	51 : 21 : 28
C.	68 : 28 : 21
D.	17 : 28 : 3
Answer» C. 68 : 28 : 21

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