An alloy consists of 30zinc, 45persent nickel and the rest copper. Find the mass of copper in 400g of alloy
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Step-by-step explanation:
percentage of zinc and nickel = 30 +45 = 75 %
percentage of copper = 100 -75 = 25%
mass of copper = (25/100) x 400 g = 100 g present in 400g of alloy
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