Metal alloy

What is the ratio of metals in the alloy that is in the 50 tonnes of steel to 30 kg nickel?

Correct result:

x =  0.06 %
y =  99.94 %
p =  0.0006004


x = 100-y
x = 30/(50•1000)•100
p = 30/(50•1000-30)

x+y = 100
x = 0.06
p = 0.0006

p = 34997 ≈ 0.0006
x = 350 = 0.06
y = 499750 = 99.94

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