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In an alloy, gold and silver are in the ratio of 2 : 3. In the second alloy, the same elements are in the ratio of 4 : 5. If these two alloys be mixed to form a new alloy in which two elements are in the ratio of 7 : 8, the ratio of these two alloys in new alloys is?1). 1 : 22). 1 : 33). 1 : 44). 1 : 7 |
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