An alloy have tin, copper, zinc in ratio 2 : 3 : 4 and an anoter alloy have copper, zinc, tin in ratio 7 : 6 : 5. If both alloy are mixed together in equal quantity then find what part of zinc will be present in 1 kg of new alloy?
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2\7*3\6*5\4=0.178
2\7*100=28.571
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