Question

how much copper must be mixed with 144 kg of zinc in order to make an alloy of which 36% is zinc and the rest is copper

Answer 1

given that amount​ of zincs in alloy is 36% or 144 kg
so we have 36x/100=144kg
x=400 kg
amount of copper is 400-144kg
or 256kg

Answer 2

Answer:256kg

Step-by-step explanation:

total weight of alloy= X

ATP

36X/100=144

Or, 36X=144×100

Or, X=14400/36

Or, X= 256

therefore copper is 256 kg

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