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2.A and B are two alloys of gold and copperprepared by mixing these metals in the ratio7:2 and 7:11 respectively. If equal quantitiesof alloys are melted to form a third alloy C theratio of gold and copper in the alloy C?2-a) 5:7b) 7:5c) 2:5d) 5:2e) of these |
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Answer» Solution Let 1 kg of each one of A and B be taken to form 2 kg of C.Gold in 1 kg of A = 7/9, copper in 1 kg of A = 2/9Gold in 1 kg of B = 7/18, copper in 1 kg of B = 11/18Gold in 2 kg of C = (7/9 + 7/18) = 21/18 = 7/6Copper in 2 kg of C = (2/9 + 11/18) = 15/18 = 5/6Ratio of gold and copper in C = 7/6 : 5/6 = 7:5 please like the solution 👍 ✔️ |
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