An alloy coinyains 40%copper 32%nickel and rest zinc .find the mass of zinc i one kg of the alloy.
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let the mass of alloy= 1kg =1000g
copper contains=40/100×1000g
=400gram
nickel contains=32/100×1000
=320
A/Q
zinc contains=1000-720
=280
copper contains=40/100×1000g
=400gram
nickel contains=32/100×1000
=320
A/Q
zinc contains=1000-720
=280
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