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Alloy A contains 40% gold and 60% silver. Alloy B contains 35% gold and 40% silver and 25% copper. Alloys A and B are mixed in the ratio of 1:4 .What is the ratio of gold and silver in the newly formed alloy is?
20% and 30%
36% and 44%
25% and 35%
49% and 36%
Assume the weight of alloy a is 100 kg
Therefore, The weight of alloy B is 400kg
Gold silver copper
A 40kg 60kg 0kg
B 140kg 160kg 100kg
total 180kg 220kg 100kg
Therefore, Ratio of gold and silver in new alloy = 180/500 : 200/500
= 36% : 44%
Hence, option 2 is the correct answer.
By: Amit Kumar ProfileResourcesReport error
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