An alloy contains zinc and tin in the ratio of 3 : 4. Another alloy contains zinc and silver in the ratio of 4 : 3. If both of these alloys are melted and mixed in equal ratios, then what will be the ratio of tin and silver in the new alloy?
Explanation:
Let the 7 kgs of both alloys is melted together. (LCM[(3 + 4), (4 + 3)])
⇒ Quantity of zinc = 3/7 × 7 + 4/7 × 7 = 3 + 4 = 7 kgs
⇒ Quantity of tin = 4/7 × 7 = 4 kgs
⇒ Quantity of silver = 3/7 × 7 = 3 kgs
∴ Ratio of tin and silver = 4 : 3
Hence, option (c).
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