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1. |
An alloy contains copper, zinc and nickel in the ratio of 5 : 3 : 2. The quantity of nickel (in kg) that must be added to 100 kg of this alloy to have the new ratio 5 : 3 : 3 is |
A. | 8 |
B. | 10 |
C. | 12 |
D. | 15 |
Answer» C. 12 | |