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1. |
In two alloys A and B, the ratio of zinc to tin is 5 : 2 and 3 : 4 respectively. Seven kg of the alloy A and 21 kg of the alloy B are mixed together to form a new alloy. What will be the ratio of zinc and tin in the new alloy ? |
A. | 2 : 1 |
B. | 1 : 2 |
C. | 2 : 3 |
D. | 1 : 1 |
Answer» E. | |